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Oct 22, 2021 · Royal Purple 51530 API-Licensed SAE 5W-30. Royal Purple ROY11748 HMX SAE 5W-30. Royal Purple 05154 API-Licensed SAE 15W-40. Mobil 1. Synthetic Oil. Recommended Mobil 1 Synthetic Oil to Buy. Mobil 1 96936 20W-50 V-Twin. Mobil 1 (120760) 0W-40 Motor Oil. Mercedes-Benz Q-1-09-0015 – Mobil 1 Oil 0w40 Motor Oil.DoctorD pretty much schooled me in synthetic hype. But if you go with the research and the claims of the companies aformentioned.... the mobil 1 super duper synthetic edition comes in a marginal second place. Amsoil in first.....and I have no data for royal purple. But read DoctorD's posts on the matter and decide if you believe the hype.4485 posts · Joined 2004. #5 · Jul 29, 2008. Royal purple is junk. It doesnt hold up well in cars so it certainly wont hold up well in an air cooled engine. Royal purple shears very easily out of its intended viscosity grade. Countless used oil analysis samples over at bobistheoilguy.com proves this with out a shadow of a dbout.There was another thread where the issue of "Redline vs Royal Purple" oils came up. ... Mobil 1 15w50 - great oil, no complaints RP 20w50 - same as Mobil 1, only more expensive and looked like grape koolaid Amsoil 20w50 - felt same as the others, but car seemed to be happy on this oil for longer. Whatever that means (ran 9k vs 7k on the others)75% more engine protection against horsepower loss and wear. 1; 50% more cleaning power vs. AMSOIL OE Motor Oil; Protects turbochargers 72% better than required 2 by the GM dexos1 Gen 2 specification.; 28% more acid-neutralizing power than Mobil 1. 3; Trusted by professional engine builders; Guaranteed protection for up to 25,000 miles or 1 year; 1 Based on independent testing of AMSOIL ...Redline, Mobil 1, AMSOIL all list data on their oils including such key performance ratings such as High Temp High Shear ratings. Royal Purple doesn't share this info. AMSOIL has not included Royal Purple in any of their motor oil comparisions so direct comparision is difficult: Comparative Motor Oil Test Nov 05 Comparative Motor Oil Test Dec 03Royal Purple Vs. Mobil 1 Service & Maintenance. Welcome to the North American Subaru Impreza Owners Club: Thursday March 7, 2024royal purple max gear $18.99. Mobil one $8.99. Schaeffers 293 75-90 $10.76. Valvoline high performance $5.99. Coastal $4.99. Obviously base stocks come into play, but this is a LARGE difference in prices. D.Mobil 1/Amsoil/Red Line VS. New Royal Purple Pricing>? Thread starter ULVER; Start date Jul 25, 2006; Status Not open for further replies. ...Royal purple is 4 as is Mobil 1 I believe. Castrol Syntec is level 3 and so is Supertech synthetic, so they are not true synthetics. 04 Flame Red Srt-4, 30/30 Autometer Lunar Gauge, $20 occ, 180 Thermostat, Check Valve, Breather Filter, 8.5mm MSD Wires, K&N Typhoon CAI, PTP Splash Guard, PTP WGA, PTP MBC, PTP FPR Mod,PTP 3" Full TurboBack ...It’s an 2008 XB12scg. After about 1000 miles I have decided I am unhappy with it. I didn’t really notice any difference from whatever was in there from the last owner (supposedly HD SYN). I have used royal purple in the past but couldn’t find it and decided to try Amsoil. The difference is huge, especially in the transmission.Royal Purple and Mobil 1 are among the most popular oil brands that deal in synthetic oil. Picking the best between the two is quite challenging, as both bring their A-game in …Castrol vs Royal Purple vs Mobil vs Amsoil. Thread starter Maximumcanon; Start date Oct 22, 2006; Status Not open for further replies. Prev. 1; 2; 3; First Prev 3 of 3 Go to page. Go. C. ... Mobil 1 vs Amsoil. Poper09; Friday at 6:35 AM; Passenger Car Motor Oil (PCMO) - Gasoline Vehicles; 2 3. Replies 44 Views 2K. Sunday at 8:50 PM.It's simple; the better one will secure the metal ball, resulting in smaller wear. That is, a smaller average scar diameter translates to a better oil performance in the test. In this test, the AMSOIL tends to have a smaller wear scar than the Royal Purple. However, the difference in wear between the two is marginal.Jun 11, 2021 · The Mobil 1 synthetic motor oil is designed to keep engines running at their best. It’s a high-performance, low-viscosity oil that provides superior protection against engine wear and deposits. And it’s formulated with an advanced additive system that helps prevent fuel dilution for increased power and performance.Last Updated on May 17, 2024 by William V. Belles. Amsoil and Mobil 1 are two popular synthetic motor oils, each with its own set of benefits and features. While Amsoil is known for forming a durable fluid film that reduces wear and maximizes engine life, Mobil 1 is praised for its high-performance additives that offer excellent engine protection.royal purple max gear $18.99. Mobil one $8.99. Schaeffers 293 75-90 $10.76. Valvoline high performance $5.99. Coastal $4.99. Obviously base stocks come into play, but this is a LARGE difference in prices. D.As per AMSOIL vs. Royal Purple Reddit discussions, AMSOIL appears to do better in powerful engines, such as racecars. Royal Purple is ideal for heavy-duty applications. The product price range is similar for AMSOIL and Royal Purple.When comparing Schaeffer Oil and Amsoil, both renowned brands in the lubricant industry, discerning consumers seek superior performance and engine protection. Schaeffer Oil excels in extreme conditions, while Amsoil is celebrated for its advanced synthetic formulations. Make an informed choice for optimal engine health and longevity.Nov 1, 2011 · The Ams was $11+ and the RP was $13+ per qt. I just changed the ATF in the Focus yesterday and M1 ATF was $9+ per qt. Synthetic ATFs are goin throu the roof. Unless you're doing 50K miles a year you're gonna go at least 1-2 years before you run up on 30K for your next trans fluid change.The Mobil 1 synthetic motor oil is designed to keep engines running at their best. It's a high-performance, low-viscosity oil that provides superior protection against engine wear and deposits. And it's formulated with an advanced additive system that helps prevent fuel dilution for increased power and performance.MULTI-VEHICLE AUTOMATIC TRANSMISSION FLUID. Royal Purple® Max ATF is a full synthetic, multi-vehicle, high performance, long life, automatic transmission fluid. Max ATF meets the viscosity and performance requirements of late model automatic transmission fluid specifications.Run Mobil 1 Racing 4T 10w-40 motor oil and factory Yamaha Filter. Switched from Yamalube 20W-50, when I first the bought the bike. Have been running Mobil for 2k miles now. Cooler temps, smoother shifting, great oil especially for the price.11 posts · Joined 2013. #24 · Nov 29, 2013. The only people I've heard recommend using anything other than full synthetic are mechanics over 50. Standard dino oil should be used for the first 600-1000 miles, then full synthetic is the way to go. Ive used Amsoil 10w40 in my bikes since 2004 with great results.Jul 18, 2004. #6. I will give you my 2cents worth based on using royal purple street 10w-30 for 20,000 miles and Mobil 1 for about the same milage. UOA on Royal Purple at 7500 mile change showed a 10w-30 had become a low 20 weight oil. This and the wear metals were less than impressive.Mobil 1 and Castrol Syntec delivered nearly identical results, however, their fuel mileage increases were negligible. For the Amsoil vs Mobil 1 Synthetic Oil Comparison, Amsoil consistently showed 1.5 to 3.5 more MPG, and this was just in the engine! You can expect better fuel mileage when changing transmission and gear oil, too.In the Amsoil vs. Mobil 1 vs. Royal Purple performance debate, we acknowledge Royal Purple's advantages, primarily its formulation that acts against oxidation and deposit formation. Furthermore, the lube's formula improves fuel efficiency and overall engine performance. The downside is its relatively low drain interval of 10000 to 15000 miles.The grade 75W -90W only means that when the oil is cold at start up, it will be a 75W grade, when the temps go up it will thicken to a 90W. You can you that grade and it will be fine. Last edited by imlowr2; 05-06-2007 at 12:18 AM. 1948 - 1956 F1, F100 & Larger F-Series Trucks - AMSOil Vs.When comparing Schaeffer Oil and Amsoil, both renowned brands in the lubricant industry, discerning consumers seek superior performance and engine protection. Schaeffer Oil excels in extreme conditions, while Amsoil is celebrated for its advanced synthetic formulations. Make an informed choice for optimal engine health and longevity.Redline vs Mobil 1 motor oil you won't believe what oil goes on to the championship to face Amsoil. #16oiltournamentnot quite buddy Mobil and Royal Purple are both Group IV oils which are derived in a gas-> liquid process. Supposedly RP has a bit of dino oil in b/c the mix the addative package in the dino and add the package to the synthetic oil. However, like 80% of the "synthetic" oils on the shelf are Group III oils which are basically highly refined dino oil.Free Fire is a popular battle royale game that has gained immense popularity among gamers worldwide. While playing it on a mobile device can be convenient, many players prefer the ...People that do one UOA with redline are always diapppointed, keep that fill in there for a few changes and see what happens. Amsoil is really good as well, I use there lubricants in part with Redline. Royal purple blows, simple and safe to say. IMHO I would use oils in this order. 1.Motul 7100 Synthetic Oil 4T - 10W40. Check Latest Price. Best Premium Choice. Amsoil Motorcycle Oil: SAE 20W-50 Synthetic. Check Latest Price. Best Budget Choice. Red Line 42404 10W40 Motorcycle Oil. Check Latest Price. Choosing the best motorcycle oil for your needs can be a tricky business.Here are the results of the test: Royal Purple had a deposit weight of 10 out of a hundred. In contrast, Mobil 1 produced a deposit weight of 49 out of 100. Royal Purple, as you can see, has a lot fewer deposits than Mobil 1. As a result, in this Royal Purple Oil vs. Mobil comparison, Royal Purple is the better choice.The Royal Purple showed a significantly high volatility rate with a 12.51% boil off rate. This compares to the AMSOIL TRO with only 4.47% volatility rating. Wear scars were also smaller with the TRO. For example the AMSOIL TRO left a .432mm scar and the Royal Purple oil left a .852mm scar.Yes, the AMSOIL Signature Series Synthetic 0w30 meets the stringent Honda HTO-06 standard. Concorso, If you click the AMSOIL banner to the right, it'll take you to the corporate AMSOIL homepage. On the right side of that homepage you'll see a box titled "oil comparisons" with recent oil comparisons for automotive, motorcycle and gear lubricants.After reading through all 5 pages in this section I wasn't able to find something like this. I know people have reviewd each BRAND separately and said good things about all induvidually, how about we put them together and see which one is more popular "performs better"? AMSOIL REPSOL ROYAL...Intriguingly, the Royal Purple engine oil is genuinely deep purple in color and they guarantee a 1 year/12,000 miles protection. Comparatively, the Amsoil has a normal golden hue, and while it’s similarly rated at 1 year, Amsoil touts a 25,000 miles protection guarantee. That’s definitely a big selling point for those that frequent highways.1. Because I read an article a while back that listed the preferred properties of a military lubricant, then matched the properties of Mobil 1 and Mobile 1 exceeded all the requirements. 2. I use Mobile 1 in my cars so I always have plenty around for my guns.75% more engine protection against horsepower loss and wear. 1; 50% more cleaning power vs. AMSOIL OE Motor Oil; Protects turbochargers 72% better than required 2 by the GM dexos1 Gen 2 specification.; 28% more acid-neutralizing power than Mobil 1. 3; Trusted by professional engine builders; Guaranteed protection for up to 25,000 miles or 1 year; 1 …I had an '03 Ducati 999S, which used synthetic. The first change after I bought it, I used Mobil 1. Within about a week I started noticing hazing on the sight glass. The only reason for that is moisture, which shouldn't have happened. I drained the Mobil 1, replaced it with royal purple and the problem never returned.AMSOIL Comparison: vs Mobil1® & Royal Purple® AMSOIL Signature Series 5W-30 Synthetic Motor Oil protects against harmful deposits on turbochargers 4X better than Mobil1® Extended Performance and 3.6X better than Royal Purple® in industry-standard testing*It's an 2008 XB12scg. After about 1000 miles I have decided I am unhappy with it. I didn't really notice any difference from whatever was in there from the last owner (supposedly HD SYN). I have used royal purple in the past but couldn't find it and decided to try Amsoil. The difference is huge, especially in the transmission.After reading through all 5 pages in this section I wasn't able to find something like this. I know people have reviewd each BRAND separately and said good things about all induvidually, how about we put them together and see which one is more popular "performs better"? AMSOIL REPSOL ROYAL... MPG. The MPG is the unit of the fuel economy thaOct 21, 2020 · It's simple; the better one wilMy question for is is a toss up of my choice on

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I couldn't find any Amsoil products around my area at th.

Synthetics: Redline, Royal Purple or Mobil 1. Take in consideration this Castrol oil you are talking about wasn't out yet but anyone can follow the same process we did and have it tested to see for yourself. Don't take my word for it or anyone else's for that matter. Run Mobil 1 through the car and send a sample in 3k mile increments.I'm not sure about the Royal Purple, but that is a good retail price for the 24,000 mile Amsoil. Don't buy the stuff label for 7500 miles unless you NEED an API certified oil. ... Since they're all about the same price, I'd use Amsoil or Mobil 1 over RP. buster. Joined Nov 16, 2002 Messages 36,713 Location NJ. Dec 10, 2003 #6 I agree with MRCO1 ...Thank you for requesting Royal Purple 0W-20 vs AMSOIL Signature Series Cold Flow Test at -55 C. The cold start is one of the most important parts on lub...The 1955 Dodge Royal Sierra Custom station wagon featured a new design and a powerful V-8. Explore the 1955 Dodge Royal Sierra Custom station wagon. Advertisement The Keller years ...I had an '03 Ducati 999S, which used synthetic. The first change after I bought it, I used Mobil 1. Within about a week I started noticing hazing on the sight glass. The only reason for that is moisture, which shouldn't have happened. I drained the Mobil 1, replaced it with royal purple and the problem never returned.AMSOIL XL Motor Oil is well-matched with both conventional and synthetic engine oils. Blending other oils with AMSOIL motor oils, on the other hand, will reduce the oil’s life expectancy and performance benefits. Royal Purple synthetic oils outcompete any other lubricating oil, like other premium synthetic oils, thanks to the enhanced ...Feb 25, 2019. Messages. 4,143. Location. Texas. Apr 1, 2024. #4. We can't say for sure but amsoil oe is at least slightly thicker by about 1.5cst kv 100 and the hths is 4.1 whereas m1 is likely 3.7 though unspecified. But it'd be inconsequential and not worth more than twice the cost of off the shelf 40 grade euros.AMSOIL is not cheap -– a gallon of 5W-30 is almost $90 on Amazon – but the company's high quality standards have earned it a 4.7 star rating and many positive reviews on that website, and over ...AMSOIL Signature SeriesSAE 5W30 VS ROYAL PURPLE High Performace Motor Oil SAE 5W30 and Royal Purple HPS® SAE 5W30 Technical Properties ASTM (American Society for Testing and Materials) Tests – We extracted the information available from the respective manufacturers and put the information in the following table. The Head-to-Head side-by-side ...Amsoil Synthetic Oil. Amsoil's performance in these tests always produced top results. It consistently shows an increase in mpg from 1.5 to 3.5 more. If you consistently use Amsoil in your engine and change your oil every 5,000 to 7,000 miles you will experience a better performing and less troublesome engine.Royal Purple Vs. Amsoil. Jump to Latest Follow 4K views 7 replies 5 participants last post by pgiller Oct 26, 2008. S ...Mar 17, 2020 · Royal purple vs mobil 1 & super tech oil tournament. Watch on. Mobil 1 meets all the requirements for modern synthetic motor oils. It is based on Mobil’s unique patented formula, with a quality oil base and a unique additive package. Keeping the motor clean and getting rid of existing harmful deposits in the form of soot and sludge are the ...I use mobile 1 royal purple is just to much money. Synthetic oil is definitely the way to go tho better for your engine and get to change it every 5k . Manny. ... thats why I said the heck with them all and used Full Synthetic oil from AMSoil. Upvote 0. Dec 25, 2009 #14 DSM1G90. 5+ Year Contributor. 5,101 66 Apr 6, 2008 Nampa, Idaho. any ...Amsoil,red-line,mobil 1 gold cap and royal purple are all group 4 or better basestocks which means they are a true synthetic. Castrol syntec,mobil 1 tri-syn,penzoil platinum and h-d syn 3 are all group 3 which are a highly refined conventional. So if you choose from the first 4 options you are getting what your paying for.75% more engine protection against horsepower loss and wear. 1; 50% more cleaning power vs. AMSOIL OE Motor Oil; Protects turbochargers 72% better than required 2 by the GM dexos1 Gen 2 specification.; 28% more acid-neutralizing power than Mobil 1. 3; Trusted by professional engine builders; Guaranteed protection for up to 25,000 miles or 1 year; 1 Based on independent testing of AMSOIL ...RP's top of the line PCMO vs Amsoil's top of the line PCMO. D. Dallas69. Joined Feb 11, 2014 ... Amsoil 12.8 7.6 Kendall GT 8.7 10.7 Mobil 1 9.7 10.1 Pennzoil 9.0. 9.3 QS 8.5 8.8 All 5W-30 were tested ... it still flows better than virgin Royal Purple. I know the Amsoil does have a couple ringers, let's say, when it comes to their cold weather ...1 Differences between Mobil 1, Royal Purple and AMSOIL are –. 1.1 Fuel Economy. 1.2 Longevity. 1.3 Value for Money. 2 Similarities between Mobil 1, Royal Purple and AMSOIL are –. 2.1 Viscosity Grade. 2.2 Licenses. 3 Useful Questions:- 3.1 Royal Purple vs AMSOIL gear oil? 3.2 Royal Purple vs AMSOIL Oil Filter?As per AMSOIL vs. Royal Purple Reddit discussions, AMSOIL appears to do better in powerful engines, such as racecars. Royal Purple is ideal for heavy-duty applications. The product price range is similar for AMSOIL and Royal Purple.AMSOIL uses naturally shear-resistant base oils combined with top-tier, shear-stable viscosity improvers. AMSOIL synthetic motor oil withstands extreme heat and shearing forces, exceeding industry standards and outperforming competing brands. In fact, it fights viscosity breakdown 46 percent* better than Mobil 1.Based on the tests posted on the Amsoil website it appears Mobil 1 is almost always finishing a close 2nd place to the Amsoil synthetic. My brother showed me that stuff and am between that and Royal Purple. ... i read an article and Mobile 1 uses Royal Purple products in the turbines. Now that says something doesn't it. artyon: Also i have a ...In Amsoil’s case, normal service changes should take place every 25,000 miles. Redline lists its changes to be scheduled every 18,000 miles. And coming in last, Royal Purple recommends 12,000 miles. Ideally, the option that is going to cost you less in the long run is usually your best choice. And Amsoil appears to be the brand that needs ...BTW Amsoil concedes Mobil 1 is full synthetic but states their oil is better. For EOCI they may be correct. Gene . Pablo. Joined Oct 28, 2002 Messages 60,239 ... Royal Purple vs Competitors. buster; May 5, 2023; Passenger Car Motor Oil (PCMO) - Gasoline Vehicles; 2 3. Replies 54 Views 11K. Aug 19, 2023.In a test conducted where Amsoil 5W-30 Synthetic Motor Oil was pitted against Mobil 1 SuperSyn 5W-30 Motor Oil, the Amsoil oil lost only 4.9%, while the Mobil 1 variant lost 9.17% of its original weight. In layman's terms, this means that Amsoil has a stronger resistance to boiling off at extremely high temperatures.Amsoil vs Mobil 1 motor oil tournament championship find out what is the best 5w30 engine oil.#16oiltournament1 Differences between Mobil 1, Royal Purple and AMSOIL are –. 1.1 Fuel Economy. 1.2 Longevity. 1.3 Value for Money. 2 Similarities between Mobil 1, Royal Purple and AMSOIL are –. 2.1 Viscosity Grade. 2.2 Licenses. 3 Useful Questions:- 3.1 Royal Purple vs AMSOIL gear oil? 3.2 Royal Purple vs AMSOIL Oil Filter?As shown in the graph, AMSOIL 5W-30 Synthetic Motor Oil has a higher TBN than Mobil 1 SuperSyn 5W-30 Motor Oil. Mobil will not recommend or guarantee 25,000 mile/1-year drain intervals like AMSOIL 5W-30, 10W-30 or 10W-40 or 35,000 mile/1-year drain intervals like AMSOIL 0W-30 Severe Service Synthetic does and that is a fact.What impressed me about AMSOIL was that it used tIn this video we show what a quality off the sh

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but all of the websites comparing them i come across say the amsoil is better.... i deliver for fedex and my... in this thread in this sub-forum in the entire siteMobile 1 vs Royal Purple vs Amsoil. Jump to Latest Follow Status Not open for further replies. 1 - 18 of 18 Posts ...My take on it is Amsoil is the best out there, by far. The most critical factor IMO being viscosity breakdown, or more correctly the lack of it. Once an oil loses its viscosity, the hydrodynamic lubrication layer gets too thin and you have metal to metal contact. Keep that up too long and engine death follows.The better the oil protects then the less damage that happens. The smaller the wear scar the better... As you can see the AMSOIL signature series is all the way to the left in first place with the smallest wear scar where Royal Purple came in 4th place. Generally speaking they are very close in this test but motor oil is like a chain in that it ...Phoenix, Arizona - USA. Mar 4, 2019. #4. Cue the AMSOIL hate.. Honestly, after watching that video, I must agree that AMSOIL definitely has something going for it. It appears, at least from the tests he did, to be very robust. I'm quite impressed that, even after the cooking it endured, it still flows better than virgin Royal Purple.Mobil 1™ Extended Performance High Mileage 0W-20 Up to 20,000 miles of outstanding wear protection for high mileage vehicles - guaranteed. Mobil 1™ High Mileage 0W-20 Vehicles with more than 75,000 miles need extra care. Keep them on the road with Mobil 1™ High Mileage 0W-20 synthetic motor oil. Mobil Super™ Synthetic 0W-20Prev. 1 / 2. C5 Tech - Mobil 1 vs Royal Purple - I just wanted to mention that I shipped off both samples of 5w-30 oil to Blackstone Labs .. It took me a year to put on 8000 miles... 4000 of those miles were on Mobil 1 and the other 4000 miles were done on Royal Purple. The DIC showed 30% oil life remaining in both cases..Redline Motor Oil. Maintains the best flow at cold temperature. Provides best oil flow at high temperature. Increased base number (13) than Redline. Low base number (10) than Amsoil. Cold Cranking Viscosity 3700. Cold Cranking Viscosity 6400. It doesn't allow to create much deposit in oxidation.bsze. I would use the 83220309031 OEM BMW MTF-LT-2 in the SMG transmission, as you dont even know if the other fluids is rated for the SMG. As for the rear diff, I am also using 83222282583 BMW Rear Axle Fluid (SAF-XJ + FM Booster) as this fluid came out in response to the rear diff making noises and things. Its been working very well for me.Royal Purple HPS Series motor oil is specifically formulated to maximize performance and meet the demands of high performance and modified engines. Mobil 1™ 5W-30 is an advanced full synthetic engine oil designed to keep your engine running like new by providing exceptional wear protection, cleaning power and overall performance. Mobil 1 …Ford Fusion Visual / Audio. Maintenance and CareMobil1 vs amzoil vs royal purple I'm sure all three are very good oils , they all meet the API performance criteria and all three have the SAE starburst on the front label. My problem with Amzoil is I have to meet some guy behind the dumpster at 7-11 to buy a quart.0. 0. DFW, Texas. Nov 13, 2003. #1. I was at the local speed shop the other day and noticed that they are selling Royal Purple 5w-30 for $4.50/qt. Autozone sells Mobil 1 full Synthetic 5w-30 for $4.58/qt. So the price is not an issue.https://www.amsoil.com/business-opportunities/commercial-account.aspx?zo=5257753This video is based on facts, actual test results from independent lab.http:/...75% more engine protection against horsepower loss and wear. 1; 50% more cleaning power vs. AMSOIL OE Motor Oil; Protects turbochargers 72% better than required 2 by the GM dexos1 Gen 2 specification.; 28% more acid-neutralizing power than Mobil 1. 3; Trusted by professional engine builders; Guaranteed protection for up to 25,000 miles or 1 year; 1 …What I like about Mobil 1 is the ease to find their Specifications and Approvals for any oil they sell. Your engine will live a long life if you choose either product. But if Mobil 1 is cheaper, go with Mobil 1. Mobil 1 ESP Formula 5W-30 has the following builder approvals: BMW Longlife 04.The lower the number the better for this test. As you can see Mobil 1 takes 4th place in the cold crank viscosity test where AMSOIL placed first. One of the great benefits of using synthetic oils is supposed to be the low temperature performance so you would expect to see synthetic oils perform very well on this test yet there are some ...Apr 5, 2024 · Oil Specs AMSOIL Signature Series vs Mobil 1 Extended Performance. Oil Specifications (from manufacturers) AMSOIL SS 5W-30. Mobil 1 EP 5W-30. Kinematic Viscosity @ 100°C, cSt (ASTM D445) Kinematic Viscosity is defined as an oil's resistance to flow and shear due to gravity. At high temperatures, higher viscosity is better and at low temps ...As per AMSOIL vs. Royal Purple Reddit discussions, AMSOIL appears to do better in powerful engines, such as racecars. Royal Purple is ideal for heavy-duty applications. The product price range is similar for AMSOIL and Royal Purple.M1 EP 0w-20: MRV: ~9,000cP (estimated based on higher % PAO base than the AFE) Flash: 455F (235C) Royal Purple 0w-20: MRV: 34,200cP. Flash: 420F (215C) On cold temp performance alone, the Mobil 1 products win by a landslide. But the slap in the face is the better flash point too. Next, we shall compare how effectively these lubricants pr