what octane are you running?

1500ram12 · Mar 19, 2012

Just curious what octane everyone is running? Is their a preference for the hemi?

glass3222 · Mar 19, 2012

Run at least 89 octane in the Hemi. 87 will hurt performance and fuel economy

LB3711 · Mar 19, 2012

manual says 89 and my truck seems happier with it. its only like $4 more a tank so its not a abig deal for me when its already $80+ to fill up lol

Hemitom · Mar 19, 2012

I've been using 87 pretty much every fill up since new...now I've put 89 in once in a blue moon and have used octane booster occasionally...haven't really noticed any issues in 7 years and 93,000 miles.

dodger2107 · Mar 19, 2012

89 .runs like crap on 87

S2kiHemi · Mar 19, 2012

I only use 89

shostopper17 · Mar 19, 2012

89 all day and i always use shell gas its always cleaner

BigH0ss · Mar 20, 2012

I use 91

Rotzilla · Mar 20, 2012

85 no problems to report.

1500ram12 · Mar 20, 2012

I've been running 87 not even thinking about it. I was reading on another forum that someone had just bought a 09 pw or regular 2500 with the hemi and was running 87 and said it is running like crap and pinging all of a sudden and thought it might be due to him running 87 and maybe the previous owner had run 89 or 91. So I am just curious what everyone is running

quietpeen · Mar 20, 2012

i've been running 87 and it runs fine, but i didn't know the manual specified 89 so i might switch

Graygoose · Mar 20, 2012

what manual states, 89 for me.

05singlecabHEMI · Mar 20, 2012

i run 93.

Mega-Hemi · Mar 20, 2012

Always run 89 in mine. Heard too many horror stories about popping rings off the tops of pistons in the HEMIs from running 87 and knocking.. It's all hear-say but for the extra 10¢ a gallon, I'm not taking the chance.

05singlecabHEMI · Mar 20, 2012

my favorite is when you tell people you run the highest octane they flip out because how expensive it is. its only like $10 more or so to fill it.

BlackedOutHemi · Mar 20, 2012

I run 93. Have since I installed my tuner.

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blackout11 · Mar 20, 2012

Ive run 87 since day one its been a year and no problems i just add some gas treatment every now and then / oh did i mention i worked in an oil refinery so you go ahead and buy premium lol if you only knew

blackout11 · Mar 20, 2012

shostopper17 said:
89 all day and i always use shell gas its always cleaner

Actually about the shell thing not sure where they get there gas from but i know most refineries like sunoco produce gas for multi companies. So just because the sign says texaco dont mean your getting texaco gas. But like i said not sure but shell i know sunoco,texaco,conoco make gas for different companies

MADDOG · Mar 20, 2012

Stock, mine barely ran on 87, grumbled a lot when on 89 so I run 91.

WhiteExpress · Mar 20, 2012

90 / 91 whatever the premium pump is here (yay high elevation).

I've always run premium in everything I've owned. Never had any ill effects.

what octane are you running?

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