I am look to buy a 2006 350Z and with two different answers from dealers. What is the recomended octane gas to use? One owner told me he uses regular (87) and no problems. I'm a cheap skate but don't want burned valves after 50,000 miles if 87 is not recomended.
thanks, Bud

 

Check your owners manual. What does it say?

 

91

 

look inside your gas-lid Premium Unleaded only

 

They say that, but then when asked about it at the dealership, the finance manager said in a low tone that it doesn't matter what the octane level is as long as theengine doesn't knock, but then again do you want tot take that risk with your Z, i know I wouldn't...

 

It's not worth screwing anything up imo. 91

 

Well if the car calls for 91...why would you put 87....

 

Dealers, salesmen, and auto finance people don't usually know very much about technical aspects of the cars they sell. The manual is written by the engineers who built and designed the car.

87 Octane isn't recommended. Why? It will cause the engine to knock and the ECU will retard timing to compensate. You just paid for 20 or more horsepower you can't use with lower octane. The engine is designed to run on 91, so in effect you are risking damage(if a knock sensor fails), and may exceed engine parameters if you get into a hot, high load, low RPM range that may exceed the ability of the ECU to compensate.

 

jesus christ does the flood of idiots ever end?

 

If your that cheap you have no business buying a Z, go buy a civic!

 

Seriously man, put what the MANUAL states!

If your too cheap to add $2-$4 extra every fill up, then you have no business in a $30K sportscar!

 

^^^your quote is the only piece of good info in this thread...lol

 

Uhmmmm.... You've been here for like 4 weeks.

JET

 

Unless daddy bought it, then he has every right to be in it!!

I say, fill it up with pee!! It's even cheaper!

 

hahahahaa pwnd

But seriously though....why the hell would you jew out on a such a nice car??

 

thats not pwned, i noticed an influx of idiots in the first week, if you think that was a burn than you need to get out from under your rock

 

why would you want to stick cheap gas in your Z?? Does your Z deserve it??

 

yeah but you talk like you've been here for years...oh well, simple laugh, move on now

 

https://my350z.com/forum/showthread.php?t=188064

 

You're ALL newbs to me!