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Yep, gauge shows its just about exactly 6" Hg to hold lean-burn. My car has had a real hard life, 55 tank mpg is downright incredible, not likely to occur on mine anytime soon. I filled up tonight, tank mpg was 49.00... a record for me, but not sure if 86 octane had anything to do with that, more likely trying P&G did it.
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