Shelf Life of Race Fuel
 

I have about 50 gallons in my tank that's been sitting for about two years. It looks pretty good, but not sure if I can use it. It doesn't have any varnishing, water, or sediment in the tank.

If the drum has been opened its done, theres a ratio of octane loss per time of exposure to outside air even if its re-sealed,, dont know the exact numbers but its substantial

Race fuel does not deteriorate like gasoline. I would use it.

AV gas doesnt, race gas does, its your engine IMHO!!!

Looking at Pantera's website a 28' Pantera holds 140 gallons. If this is true then I have about 100 gallons of this crap.

Take a sample and try to ignite it.

It'll still ignite, but the octane rating has gone WAY down, Ive got a dead motor to prove it :(

Can I add new race fuel or 93 and octane booster and run it???

Its still an unknown unless you have a way of testing it,,I think you have some expensive lawnmower fuel on your hands!

I am not that familier with race gas, but if its unleaded, then just mix it in small quantities into your car or truck. Your looking at $150 to $300 worth of fuel. If its leaded, then run it in small quantities in your motorcycle, or perhaps straight in your lawn mower.

:eek:

I wouldn't even risk it. Pump the old gas out and start fresh. It could save you a lot of head aches.

Do not use it. Unless stored under pressure it loses octane very quickly.

I have a great article on this that I will try and find and post.

Just so we are all on the same page here, the motor that is in your boat does not require race gas right? I would be suprised if the race gas that's in there has deteriorated to the point that it's below 87 octane. If you had a high compression or boosted race gas motor, then I would not use it. But with your motor, I wouldn't be scared to run it mixed with fresh 93.

Anytme I have left race fuel in my race cars it evaporates,I guess being its vented.

Its make good parts cleaner

I agree. If you don't NEED the higher octane then you'll be fine.

I ve heard if you do not require the higher octane that it makes less HP.

I had a pump gas 93 blower motor that I dynoed at Dyno Tech in Memphis, They also make there own race gas. After all the tuning on pump gas , we made a few pulls on the race gas which was around 112oct, Its wasn't much diff in HP but it gained TQ, around 25.:D