[xraytekca]

i just bought a 08 limited 4x4 and the manual says use 87 or higher. it also says its normal for the engine to knock at times going up hill or a higher speeds, i did not like that. i dont mind using premium gas, but i know that in some cars using higher octane hurts the cars performance and throws off the fuel maps.

thanks
bj

 

[eurohazard]

Have you heard knocking/pinging? When I tow in the mountains, I will put some premium fuel in my tank (keep in mind I have an Armada though). For just passengers, I use regular unleaded no matter the terrain.

 

[xraytekca]

no knock yet, but ANY type of knock is bad news in my book. i mean the 5.7 is a high tech motor, why even risk regular...i thought the armada/qx56 needed premium fuel, no?

 

[xraytekca]

well here is how iam gonna do it, for local 87 octane, for long trips up hills, and high speed 91.

goodnight

 

[eurohazard]

Sorry I never got back to the question.....The Armada only requires regular, but I think the Infiniti suggests 91 octane.

I think your plan is good though. The Sequoia only requires regular too right? Just watch out for stations that sell 85 octane!

 

[xraytekca]

Sorry I never got back to the question.....The Armada only requires regular, but I think the Infiniti suggests 91 octane.

I think your plan is good though. The Sequoia only requires regular too right? Just watch out for stations that sell 85 octane!

kool, thanks for the info, well the manual says 87 or higher, its the higher part that makes me want to feed it premium/