premium fuel

[HawaiiMM]

Are there any problems other than decreased engine performance, with using anything less than premium fuel?


I know what you thinking... Just use premium fuel right? But it is not always Available here.

Thanks, Josh

[2003 MIB]

Aloha!-
If you don't experience detonation or pinging with a lower grade- it's cool. If you do, your stuck driving with the higher octane.

[Logan]

Not always available? Ack! Hmm, there goes the master plan of moving to hawaii... Sigh...

[rookie1]

The 04's have dual knock sensors making them a little less susceptible to detonation from lower octane fuels. Your earlier post said you had an 03 if I remember correctly with a single knock sensor. It should run ok with mid-grade but make sure you listen for knock and pinging.

[Ross]

Don't some of the tuner programs have methods of tuning for lower grade fuel?

[Lou]

I was wondering about mid grade myself because it falls between recommended and super premium. What specific octane is required?

[RF Overlord]

What specific octane is required?

According to the owner's manual, 91.

[junehhan]

Not always available? Ack! Hmm, there goes the master plan of moving to hawaii... Sigh...


That, and of course the cost of petrol in that state! I would also feel too claustrophobic there as well since it's not very big.

[Lou]

I understand that the manual calls for 91 octane but I guess my question was that when I look at the pumps the three grades are 87, 89 and 93 octane. How much is the performance degraded if I use 89 octane?????

[rookie1]

I understand that the manual calls for 91 octane but I guess my question was that when I look at the pumps the three grades are 87, 89 and 93 octane. How much is the performance degraded if I use 89 octane?????

The times I've filled up with 89 due to no 93 available or it being $2.50 a gallon, I don't notice a decrease in performance.

[FordNut]

Are there any problems other than decreased engine performance, with using anything less than premium fuel?


I know what you thinking... Just use premium fuel right? But it is not always Available here.

Thanks, Josh
I get flamed for even saying so, but my wife's has always had 87 run in it. No problems and it has over 26k mi on it now. It is stock. I won't run low grade in mine, as it is highly modded and runs a lot of timing.

[Hawaii 5-0]

County gas is premium :)