ryanryan
New member
As the title says what fuel do you run in your viper?
Yamidude59
New member
I run the highest octane fuel i can find in pump gas, by me its 93 octane..... I run it in my srx, which is basically a viper, motorwise, besides pipes.
I run reg in mine. I find it hard to get premium and if you do find it who knows how long it has been sitting in the storage tanks. Fresh reg is better than stale premium
imo
imo
akrievins
New member
Manual calls for 89, but I run 91 from Petro Canada whenever I can. I have the "save 2 cents Peto card" 
Most places where I fill up there's LOTS of snowmobile traffic, so the premium shouldn't be stale.
I swear it runs better with the good stuff.
Is it a waste to run 91? Or is 89 good enough?
Most places where I fill up there's LOTS of snowmobile traffic, so the premium shouldn't be stale.
I swear it runs better with the good stuff.
Is it a waste to run 91? Or is 89 good enough?
run 93. especially if you have it piped. Gas isnt top quality at thye pump these days.
WNYViper
New member
I noticed a difference in throttle response on my Viper going from 93 to 87 (only thing the station had and i was on fumes)... i run the highest grade i can.
mopar1rules
Active member
WNYViper said:
throttle response...did it get better or worse?
Snowsnake
New member
If an engine is designed to run on regular fuel then you are just wasting money putting a higher octane in it.In some cases it can actually be harder on fuel.The only reason to go to a higher octane wold be if you had pre-ignition and actually if you have pre-ignition then you have a problem that should be addressed.
WNYViper
New member
mopar1rules said:
It was worse with the 87. I could have been imagining it but in my opinion it was worse.
Millinocket Rocket
New member
I always thought that higher octane fuel burns cooler-- thus resisting detonation and is needed more for higher compression motors...