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Maintenance & Repair Synthetic motor oil
8536 messages, Last post on Nov 21, 2009 at 9:34 AM
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Replying to: robert1955 (Oct 31, 2007 5:02 am) Now, if you want to step into oils that claim to meet the API standards, and claim to meet various manufacturers oil specifications, but have not been certified to meet any of those standards by independent labs, then you can look at Royal Purple, Red Line, Amsoil and probably a few others. In the end, most folks buy Mobil 1 as it is the most widely available Group IV on the market. If you want to buy German Castrol Syntec 0W-30 (often referred to simply as GC), the only place where I consistently find it is at AutoZone. Best Regards, Shipo
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Replying to: robert1955 (Oct 31, 2007 5:02 am) Other group IV oils are Amsoil and Redline, (who both SAY they meet the standards, but indeed are NOT certified for to specifications for most of their oils) ELF. There are more, but some of the names escape me. You will find all three (and most others also) are at premium to Mobil One. I am also told that Mobil One 0w40 shows great UOA numbers in place of 0w20,5w20 oils. But for your application, you would lose the fuel efficiency advantage, as you would with the 0w30,5w30. 0w30,0w40 are a bit of a hybrid in that they are generally used in European applications. So in that sense, I would not recommend them unless you are willing to cross check specifications and also take a chance on engine warranty issues, which is VERY, VERY, VERY, remote(same would be true of 0w30,5w30). |
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Replying to: shipo (Oct 31, 2007 5:17 am)
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Replying to: robert1955 (Oct 31, 2007 5:43 am) Indeed if your manual specifies the above oils, you have NO warranty concerns, not even with 0w30. Smaller issues such as 0w30 premiums and slightly higher fuel efficiencies now come to the fore.
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Replying to: ruking1 (Oct 31, 2007 6:09 am)
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Replying to: robert1955 (Oct 31, 2007 6:28 am) How are we doing so far? https://www.mobiloil.com/USA-English/MotorOil/Rewards/Mobil_1_Rewards.aspx
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Replying to: ruking1 (Oct 31, 2007 6:34 am) LSAC GF-4 API SM/CF ACEA A1/B1 Ford WSS-M2C930-A Chrysler MS-6395 And the 0W-30 meets GM 6094M, GM 4718M (Corvette spec) Ford WSS-M2C929-A ILSAC GF-4 API SM/CF ACEA A1/B1 But I am still worried the 0W-30 is NOT on the recommended weights of oil from the manufacture. So why am I even thinking about it????? lol
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Replying to: robert1955 (Oct 31, 2007 6:41 am) (this may or may not be readily apparent!?Include the 0w20, and 0w30 if you have not already.) |
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Replying to: robert1955 (Oct 31, 2007 6:41 am) What you seem to be missing is the fact that a Group IV oil in the 0W-30 grade is a superset of that same oil in either 5W-30 or 10W-30. The two critical items here are to have the first number (i.e. 0W, 5W or 10W) to be as low or lower than the recommendation, meanwhile you want to have the second number pretty much bang on (or maybe a bit higher) than the recommendation. Said another way, if your manufacturer recommends 10W-30, then you can also safely choose 5W-30 or 0W-30, if they recommend 5W-30 then you can choose that or a 0W-30. Make sense? The benefit to the lower first number is that the oil will start flowing and be protecting internal engine components faster following a cold start than either a 5W-30 or a 10W-30. The colder the engine gets, the greater the advantage is for 0W-30. Another thing to keep in mind is that for many older cars (our 1998 for instance), 0W-anything oils were all but non-existent when they were built and as such, manufacturers didn't start specifying then until fairly recently (with the excpetion of a number of European marques who were early adopters of 0W oils). Best Regards, Shipo
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Replying to: shipo (Oct 31, 2007 7:00 am) Also, thanks again for all the help.
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