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Would it be ok to run Mobil's 10w-40 MC oil in a car? I like this grade and would like to try it. ![[Smile]](images/icons/smile.gif)
![[Smile]](images/icons/smile.gif)
quote:I, too, am obsessing about 40 weights (whether or not Buster is admiting to it)
Originally posted by YZF150: Buster, are you obsessing on 40 weights? You've been asking and posting about them for weeks. We all thought that you'd decided to go with the Delvac 1 after a score of members convinced you that it would be OK for your 4 cylinder. Why would you even think of a motorcycle oil? The additive package is inappropriate.
quote:My understanding is that M1 15w50 is not primarily intended for diesels like the 15w40's are.
Mobil 1 with SuperSynTM 15W-50 is especially suitable for high-performance cars, particularly hot-running or heavily loaded vehicles and special high-tech imports.
quote:Their 0w40 more than covers the need for 10w40. If you look at it's specs, it's very similar to most 10w40s in viscosity at 40c and 100c. It's just that in extreme cold it flows better. So why would Mobil 1 need to make a 10w40?
Originally posted by buster: The specs are good. I see this oil at autozone and advanced auto parts all the time. I still can't confirm if it can be used in a car. Mobil's website does mention that you can't use car oil in a bike, but they don't really say specifically you can't use the MX4T in a car. I wish Mobil made a 10w-40 car oil.
quote:Keep in mind that most 10w40s thin out to a 30wt too.
Originally posted by buster: I just figured the 0w-40 would thin down to a 30wt., but I guess even if it did, it would be a high 30wt.