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Octane Booster
Posted: Tue Jul 15, 2008 1:24 pm
by blkrm
I was wondering, with a 2-stroke, if anyone adds octane booster to their pre-mix? Are there any issues with doing so?
More specifically an '02 RM 125. Any recommendations on a brand to go with?
Re: Octane Booster
Posted: Tue Jul 15, 2008 5:15 pm
by trailguy
Most octane boosters are useless, I only know of 2 that are any good. VP C5 & Lucas Oils octane booster. For the last 17 years I've run Shell Gold with octane booster & Optimol Opti 2 @ 80:1.This has been run in KTM 125 & 200's & the last 3 years in my son's very high strung KTM SX 50. Alot of people run race gas in SX 50's because they have a nasty habit of turning into grenades. Up until last summer I had run C5, but the flakey VP dealer in Calgary was out of C5 for 6 weeks. You can get Lucas products Auto Value dealers.I believe the Lucas octane booster is even better than VP. Whatever you do don't run anything but Shell Gold in that RM 125, mix your oil/gas at what the oil manufacter recomends - not what your manual says, some oils are developed to run at 20:1 others are 100:1.
Re: Octane Booster
Posted: Tue Jul 15, 2008 5:46 pm
by dirtyboy
You can trust trailguy. He is a straight shooter, knows his stuff and has experience.
Re: Octane Booster
Posted: Fri Jul 18, 2008 8:15 am
by blkrm
Right on Thanks a lot. Yeah, I only use shell gas for my bikes. And yeah Lucas products are in my opinion far superior to other brands. Well I will try that and see if I can get any more juice out of her. Thanks again for the help!
Re: Octane Booster
Posted: Fri Aug 08, 2008 5:39 pm
by Hollywood
trailguy wrote:Most octane boosters are useless, I only know of 2 that are any good. VP C5 & Lucas Oils octane booster. For the last 17 years I've run Shell Gold with octane booster & Optimol Opti 2 @ 80:1.This has been run in KTM 125 & 200's & the last 3 years in my son's very high strung KTM SX 50. Alot of people run race gas in SX 50's because they have a nasty habit of turning into grenades. Up until last summer I had run C5, but the flakey VP dealer in Calgary was out of C5 for 6 weeks. You can get Lucas products Auto Value dealers.I believe the Lucas octane booster is even better than VP. Whatever you do don't run anything but Shell Gold in that RM 125, mix your oil/gas at what the oil manufacter recomends - not what your manual says, some oils are developed to run at 20:1 others are 100:1.
I run opti-2 as well, some of my friends run 50:1 on it some 60:1, Im a little scared to run it at 80:1. I used to run it at 50:1 but I think its too oil rich so I'm going to start running it at 60:1.
On time my friend accidently made it 40:1....smoke machine anyone??