For those of u who run on 89 octane
 

First off, this isnt a thread about what octane is best, I know OEm recommends 87, but the other day at petro Canada, 89 octane was the same price as 87 octane (bonus!) so i thought i would try. Anyways, now I am noticing that i am idling at 750 RPM (even with the Ac compressor running) instead of the 900-1,000 RPM that I am usually idling at. The engine runs fine, just notcied this small difference, just wondering if any of you have noticed this lol

Re: For those of u who run on 89 octane
 

i run 93-94 octane. i have a 4.0 it idles about 400rpm and there is a slight difference in performance, mostly higher rpm and better mpg. its well worth the extra cost! especially since gas here is around 3.45 for regular and i go right across the bridge to nj and get premium for 3.40 ahah

Re: For those of u who run on 89 octane
 

87 here and no probs lol

just run a bottle of techron in her every 3 months

Re: For those of u who run on 89 octane
 

I get pinging on hills with 87. It is just about gone with 89. I just occasionally hear a little ping.

Re: For those of u who run on 89 octane
 

If you were idling at 900-1000 rpm before, something was already wrong to begin with.

Re: For those of u who run on 89 octane
 

Mine idles at 690-750 even with my system on lol

Re: For those of u who run on 89 octane
 

i run 93 octane and it runs just fine, it does get off the line faster and i get more mpgs.

Re: For those of u who run on 89 octane
 

delete