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Originally Posted by nash
I found this interesting claim at http://synlube.com/sae5w-20.htm:
You will definitely get better mileage with SAE 5W-20 then SAE 5W-30 oil, but not by much, usually the optimistic estimates are LESS than 1%. The bad news is about 30% reduction in engine life (from 100,000 miles or 10 years to 70,000 miles or 7 years).
Only manufacturers who have 3 years or 36,000 miles powertrain warranties currently recommend SAE 5W-20 oil to be used in their NEW 2000 through 2006 model vehicles (FORD, HONDA). |
That is an interesting claim. Especially since it comes from a source that wants you to buy their synthetic oil that
never needs to be changed! I thinked I'd trust regular oil changes of 5W-20 to what SynLube is selling to protect my engine...