Substitute for Mobil1 15w-50?
#16
FWIW, this test has nothing to do with the performance of an oil in your engine... Likely the reason that they printed a retraction. If you really want to ace that test, pour some coca cola in the thing and you will be amazed at its performance. Household bleach does even better. I wouldn't want either in my engine...![EEK!](https://www.6speedonline.com/forums/images/smilies/eek.gif)
If you stick with any of the major brands, you will be fine. And don't get too crazy with changing the viscosities around. 5W50, 5W40, 0W40 are all great viscosities for these engines.
![EEK!](https://www.6speedonline.com/forums/images/smilies/eek.gif)
If you stick with any of the major brands, you will be fine. And don't get too crazy with changing the viscosities around. 5W50, 5W40, 0W40 are all great viscosities for these engines.
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