Thread: Gas for a hemi
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Old 02-26-2012, 12:15 PM
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from what I have read on here the timing is set for 89... so running anymore than that is a waste of money. I run 87 with no issues... there is still no exact answer on whether you get better fuel economy running - 87, 89, 91 and if you do there is no exact answer on whether it is enough of a cost savings to offset the higher price for higher octane, mind you it is impossible to do an exact study as your everyday driving changes a bit even if your route and habbits are the same, the out come will never be the exact same...
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