What petrol do you put in your Harley?

**1200custom** · 6th February 2008, 11:26

91 or 96, just wanting opinions on what they think suits the harley better, have had mixed responses in the past

**ratusratus** · 6th February 2008, 11:39

dont no y but i still reckon BP petrol is the best!
Are you in the local hogglies??

**1200custom** · 6th February 2008, 12:04

but prob will this year, are you a memba, how is the group here

**Biggles2000** · 6th February 2008, 14:10

I honestly can't tell any diference between any of the fuels in mine. It runs fine on all of them.

**rudolph** · 6th February 2008, 14:25

I have to run 16:1 avgas and 91 for the old iron motor. other than that it will runn on anything I can find.

**Owl** · 6th February 2008, 16:05

My old 1340 used to run on 91. I'm not sure why you'd run high octane fuel in such a low compression engine?

**rudolph** · 6th February 2008, 20:51

My XLCH has quit high compression, pings on the hills with just 91

**nallac** · 7th February 2008, 07:24

I usually run 91 in mine , have run 95 and 98 in it couldn't tell any difference.

**Hailwood** · 7th February 2008, 12:14

Usually 95, sometime 98 but havent used 91..remember reading in the service manual to run highest octane you can..not sure if this is a must or just a good idea....might try 91 on the run to the rally next weekend....

**hawg** · 9th February 2008, 01:28

I have a 2000 FLHTCI that I run 91 octane in with no problems. Anything less and it will ping.

**scumdog** · 9th February 2008, 03:42

Originally Posted by hawg

I have a 2000 FLHTCI that I run 91 octane in with no problems. Anything less and it will ping.

You can get fuel with LESS than 91????

I use 96 mostly, 98 at times.

**R1madness** · 10th February 2008, 07:30

We use 91 in everything. It is the most stable and takes the longest to deteriate in the tank.

**1200custom** · 10th February 2008, 10:58

thanks all, i guess ill stick to 91

**mudthug** · 11th February 2008, 00:51

Originally Posted by ratusratus

dont no y but i still reckon BP petrol is the best!
Are you in the local hogglies??

I agree 98 and definitely BP otherwise the fatty runs like shit

**Patriot** · 11th February 2008, 10:05

When I scored my hog the biker told me to use 95 octane as he said it has more lead in the fuel to keep the chambers coated .Then another biker further down the road told me to use one part aviation fuel mixed with 91 octane.This he told me gives better performance.Also putting lead deposits back in the chamber.AV gas is costly so now I just run 91,then maybe once a while I'll run 95 or AV just to keep my bike happy.,,,,,LTR