What are the group four oils?
Super VXer
What are the group four oils?
Super VXer
One thing to keep in mind about gas mileage right now is that we are now running on summer blend gasoline. Summer blend has about 10% less energy content so your gas mileage will probably be 10% lower as well (maybe more). Isn't it nice how they've set it up where the more expensive gas gives us less performance?
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