Oil grade data.
March 1 to Sept 1 2012
Pennzoil conventional (yellow bottle) 10w30, ave was 42.58 mpg.
March 1 to Sept 1 2013
Same oil but 5w20, ave was 44.48 mpg.
Now, it is common for most people is to blow off the notion that grade can make a difference in the same oil. They just can't fathom being consistent enough in their driving patterns to see it! (Yes, this takes massive discipline)
Now, if we are a smart bunch, and hold to our belief that we are consistent enough to see changes, then I would like to hear your experiences regarding things that bring a small benefit.
Otherwise, why go through all the hassle if you are not seeing a benefit???
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This ain't a war, anymore than a war between men and maggots. Or, dragons and wolves. Or, men riding dragons, throwing wolves at maggots!
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