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post #16 of (permalink) Old 12-05-2018
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This is a marketing ploy to get cheapskates to buy Mobil-1 in a different jug.

Change the Oil!

A reasonable Thumb Rule is:

6 Months -or- 6,000 Miles

Nothing to lose.
If you like what happens when you stomp on it!
Oil it often!
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post #17 of (permalink) Old 07-28-2019
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Red face

Direct injection is a death warrant for the top end of gas engines. 1925 that type of fueling system was invented and worked well to increase hp and fuel economy. But the top end gets destroyed for a lack of cleaning by quality detergents in top tier gasoline. Yes the super oils may still do their job for 20k but u r still recirculating all that spent fuel by the egr system back into the top end. I now use synthetic oils in my vehicles because I live in a cold winter climate. If I lived in a southern climate I would go back to regular dino oil with changes every 3k miles. Have had many American made vehicles go 185k before I sold them and still never had a oil consumption/burning issue. (Just wanted a change of venue) Going back to50s, 60s and 70s cars is a different story. Just go to a BMW site and read some of their horror stories of having to pull heads and have them walnut blasted at 50k.
This story is not scientific fact just life experience. So take it with a grain of salt.
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