havoline oil...kinda OT - Off-Road Forums & Discussion Groups
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post #1 of (permalink) Old 05-11-2001, 01:23 PM Thread Starter
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havoline oil...kinda OT

my buddy just changed his oil with new havoline oil (not synthetic) that says it will improve mpg. he said it improved by 3 mpg. anyone else use this stuff. also he has always used havoline oil, this is just there 'new' formula. for 3 mpg it seems worth it.


The cup isn't half full or half empty, it's just twice the size it needs to be!!!
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post #2 of (permalink) Old 05-11-2001, 01:31 PM
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Re: havoline oil...kinda OT

Oil alone will not improve milage that much. Switching to a lighter weight oil will improve milage a little as the oil is thiner and moves easyer. However no where near 3 miles per gal. I a older engine it is beter to stay with heavy oil as the bearings will not be tight enough to keep oil pressure up with thin oil.


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