What gas do you guys run?
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What gas do you guys run?
I've been running mid grade (I'm at about $30k miles). No issues till recently, we have summer gas in MD and between that and the heat wave, the big D felt SLOW. I ran it down to empty and filled it with premium and noticed a HUGE difference in performance. Smoother acceleration, more power, runs like new.
Anyone else dealt with this?
Anyone else dealt with this?
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I found this in a similar thread when I did a search
RTFM. Pg 511,*Fuel*Requirements 5.7l Engine:*"The manufacturer recommends the use of 89 octane for optimum performance. The use of premium gasoline is not recommended, as it will not provide any benefit over regular gasoline in these engines." Gotrpm posted it
RTFM. Pg 511,*Fuel*Requirements 5.7l Engine:*"The manufacturer recommends the use of 89 octane for optimum performance. The use of premium gasoline is not recommended, as it will not provide any benefit over regular gasoline in these engines." Gotrpm posted it