Quote:
Originally Posted by cb1111
By definition, an oil that meets a certain specification will work the same as another oil that meets the same spec - aside from the fact that there are very few (if any) lubrication related issues with modern cars
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Well that is until Ford claimed the CK-4 spec Delo oil that Chevron is making doesn't provide enough protection for ANY of the powerstrokes ever produced, while other brands of CK-4 are okay as long as they meet Fords F-1 spec. So yeah oil topics can be a mess, most of which is caused by oil company/vehicle manufacture marketing.