What Gas To Use?

[alienabductor]

Hi, just purchased 04 SC 430. my first V8.

what gas to use? Hearing alot of radio commentary that 87 is OK.

is that true for my lexus?

[Air Force Rascal]

Hi, just purchased 04 SC 430. my first V8.

what gas to use? Hearing alot of radio commentary that 87 is OK.

is that true for my lexus?

I would only use 91 or higher..for this car...I think it says that inside the gas filler door doesn't it..?

Good Luck

[jzz30]

honestly if your trying to save like 3-4 bucks cheaping out on 87 octane buy a different car!!!!!!!!!!! too many people ask the same question!!! the answer is NO!!

[TexasComputerMan]

I have a 1992 SC400 and my owner's manual says to use 91 octane. Here in N. Texas, most gas stations sell 93 octane. I have a habit of always filling up when my tank is 1/2 empty/full. Just a habit I developed years ago. Any way, I alternate putting in 93 octane or 89 octane. Since this is a blend, I am always running 91 octane. I have been doing this for a year and it is working well.

[jzz30]

by theory its actually better to use higher octane fuel with older cars becasue of the carbon build up on the pistons and combustion chamber.