Grade Of Fuel Poll

EMGLIDE · May 31st, 2009, 09:50 PM

Generally i use 91 octane at a station only 1 mile from home,as i am usually passing by on way home so i fill it up.otherwise i usually fill up at local wal-mart and they have 93 octane.when out on the road with the guys i ride with we usually fill up at bp or shell as thats all they will use.
Today i ran about 120 miles of mixed riding on 2 lanes and interstate,ran at 50-60mph on 2 lanes and at 70mph with cruise on out on the interstate with the 93 octane wal-mart gas and it gave 44mpg. As a rule im not usually fussy about gas as long as it is 91 or better.did use some 87 octane last summer when i was out and i lost 10mpg.whats you guys experience with low octane.

Jim B. · Jun 5th, 2009, 01:37 AM

The octane grades in my area are 87, 89 and 91. My neighbor and I bought our 09 Roadglides a few days apart and put in a few tankfuls of 91 before and after we did the Stage 1 upgrade. My neighbor then installed a big bore kit and got back his "old" pistons, which were only about 2 months old. The tops of the pistons had quite a lot of unburned gas residue. I didn't see much point in using 91 octane if it wasn't going to completely burn so I switched to 89 octane and the bike seems to run just fine - No pinging and mileage in the low 40's.

slayer · Jun 8th, 2009, 01:41 AM

I wonder if using the high test is a waste of money on a stock or slightly modded motor. Sure lots of us use it but does it really do any more than the silver or whatever is one lower than the high test? I have put 92 in then 94 and not noticed a difference.

glider · Jun 8th, 2009, 06:15 AM

92 or 93 should be OK but I like to use the 93 which is as high as we get here, especially in the hot weather.

RK Custom · Jun 15th, 2009, 04:39 PM

I run 93 most of the time but I work in Aviation so I will also run 100LL in it which I dont really see a big differnce but man it makes the exhaust smell so good!!!

glider · Jun 15th, 2009, 05:59 PM

The higher octane really does nothing for the motor but it can damage the valves if run in excess. The best octane for your motor is one that will eliminate any pinging but I run 93 in any event.

Octane ratings aren't what they use to be years back like when Sunoco had 103.

miketini24 · Jun 29th, 2009, 08:00 PM

was told to use 91, but can't find it anywhere. MD. so i go with 93.

03classic · Jul 11th, 2009, 03:28 PM

I try to fill up at shell stations with 93.

Jim B. · Jul 13th, 2009, 12:57 AM

The highest we can get here on the central coast of California is 91 octane. I'm going through several states to and from Sturgis next month and I'm wondering whether I should try some 93 octane or just stick with the 91. (if I can find it.)

glider · Jul 13th, 2009, 07:09 AM

If it runs good on the 91 stay with that.

View Poll Results: Grade Of Fuel Used
Hi Test Only (93)	397	74.21%
Mid Grade Only (91)	108	20.19%
Lower Grade Only (89)	18	3.36%
Low Grade Only (87)	10	1.87%
Doesn't Matter To Me	2	0.37%
Voters: 535. You may not vote on this poll

May 31st, 2009, 09:50 PM	#121
EMGLIDE Start The Engine Ride: 2008 ELECTRA GLIDE CLASSIC Join Date: Jun 29th, 2008 Location: EAST MOLINE,ILLINOIS Posts: 23	Re: Grade Of Fuel Poll Generally i use 91 octane at a station only 1 mile from home,as i am usually passing by on way home so i fill it up.otherwise i usually fill up at local wal-mart and they have 93 octane.when out on the road with the guys i ride with we usually fill up at bp or shell as thats all they will use. Today i ran about 120 miles of mixed riding on 2 lanes and interstate,ran at 50-60mph on 2 lanes and at 70mph with cruise on out on the interstate with the 93 octane wal-mart gas and it gave 44mpg. As a rule im not usually fussy about gas as long as it is 91 or better.did use some 87 octane last summer when i was out and i lost 10mpg.whats you guys experience with low octane.

Jun 5th, 2009, 01:37 AM	#122
Jim B. Contributor$ Ride: 2009 Road Glide Join Date: Apr 28th, 2009 Location: Lompoc, CA Posts: 384	Re: Grade Of Fuel Poll The octane grades in my area are 87, 89 and 91. My neighbor and I bought our 09 Roadglides a few days apart and put in a few tankfuls of 91 before and after we did the Stage 1 upgrade. My neighbor then installed a big bore kit and got back his "old" pistons, which were only about 2 months old. The tops of the pistons had quite a lot of unburned gas residue. I didn't see much point in using 91 octane if it wasn't going to completely burn so I switched to 89 octane and the bike seems to run just fine - No pinging and mileage in the low 40's.

Jun 8th, 2009, 01:41 AM	#123
slayer Start The Engine Ride: 2005 fdx Join Date: Feb 21st, 2009 Location: B.C. Posts: 18	Re: Grade Of Fuel Poll I wonder if using the high test is a waste of money on a stock or slightly modded motor. Sure lots of us use it but does it really do any more than the silver or whatever is one lower than the high test? I have put 92 in then 94 and not noticed a difference.

Jun 8th, 2009, 06:15 AM	#124
glider Community Liaison Ride: 07 Road King Classic Join Date: Jun 21st, 2007 Posts: 21,064 My Mood:	Re: Grade Of Fuel Poll 92 or 93 should be OK but I like to use the 93 which is as high as we get here, especially in the hot weather. __________________ Psssst! Please stop by the "self help section" for maintenance tips, diagnostic codes and much more. click me!>>Self Help Information and Tips<< click me!

Jun 15th, 2009, 04:39 PM	#125
RK Custom New Family Ride: 2005 Road King Custom Join Date: Jun 15th, 2009 Location: Mobile, AL Posts: 7	Re: Grade Of Fuel Poll I run 93 most of the time but I work in Aviation so I will also run 100LL in it which I dont really see a big differnce but man it makes the exhaust smell so good!!!

Jun 15th, 2009, 05:59 PM	#126
glider Community Liaison Ride: 07 Road King Classic Join Date: Jun 21st, 2007 Posts: 21,064 My Mood:	Re: Grade Of Fuel Poll The higher octane really does nothing for the motor but it can damage the valves if run in excess. The best octane for your motor is one that will eliminate any pinging but I run 93 in any event. Octane ratings aren't what they use to be years back like when Sunoco had 103. __________________ Psssst! Please stop by the "self help section" for maintenance tips, diagnostic codes and much more. click me!>>Self Help Information and Tips<< click me!

Jun 29th, 2009, 08:00 PM	#127
miketini24 Warming The Wheels Ride: 2009 Fat Bob FXDF Join Date: Jun 24th, 2009 Location: Hagerstown, MD Posts: 65 My Mood:	Re: Grade Of Fuel Poll was told to use 91, but can't find it anywhere. MD. so i go with 93.

Jul 11th, 2009, 03:28 PM	#128
03classic Community Star Ride: 2003 EG classic Join Date: Jul 7th, 2009 Location: Illinois Posts: 421 My Mood:	Re: Grade Of Fuel Poll I try to fill up at shell stations with 93.

Jul 13th, 2009, 12:57 AM	#129
Jim B. Contributor$ Ride: 2009 Road Glide Join Date: Apr 28th, 2009 Location: Lompoc, CA Posts: 384	Re: Grade Of Fuel Poll The highest we can get here on the central coast of California is 91 octane. I'm going through several states to and from Sturgis next month and I'm wondering whether I should try some 93 octane or just stick with the 91. (if I can find it.)

Jul 13th, 2009, 07:09 AM	#130
glider Community Liaison Ride: 07 Road King Classic Join Date: Jun 21st, 2007 Posts: 21,064 My Mood:	Re: Grade Of Fuel Poll If it runs good on the 91 stay with that. __________________ Psssst! Please stop by the "self help section" for maintenance tips, diagnostic codes and much more. click me!>>Self Help Information and Tips<< click me!

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Grade Of Fuel Poll

Engine, Fuel and Exhaust