I live in the PNW, and surprise, surprise..... there's no 93 Octane to be found anywhere (premium is 92 here) A local performance shop sells race gas /107 octane and suggested putting in a gallon to mix with 92. Is this going to mess with the engine? I need at least 93 if I want to try the drag strip again....
This post has been deleted
Why do you need/want 93? (just curious) and if 92 is offered, I assume you are at a higher altitude, and less octane is required anyway. Is "regular" 86 in your area?
Just make absolutely sure that race gas is completely UNLEADED as you will have major issues if you put leaded gas in your car.
Sent from my SM-N960U using Tapatalk
Sent from my SM-N960U using Tapatalk
Torco F500010T Torco Unleaded Accelerator | Summit Racing
Free Shipping - Torco Unleaded Accelerator with qualifying orders of $99. Shop Fuel System Additives at Summit Racing.
www.summitracing.com
AFAIK 91 is the recommended octane. It is questionable if the factory left any performance on the table to be had by running 92, 93, or higher.
What can happen is the high octane gasoline can become stale. My experience is after 6 months Shell V-Power 91 was stale. Was not fully apparent to me until I drove the vehicle enough that I had to fill up the tank. After filling the tank with fresh Shell V-Power the engine's transformation was remarkable.
But gasoline begins to go stale the moment it leaves the cracking tower. And my info is the higher the octane the faster the staleness progresses.
Thus you probably didn't get 6 month old 92 but it still might have gone a bit stale and maybe enough to account for why you feel the car's performance might be subpar.
Of course you can try a higher octane of gasoline just as others have stressed avoid the leaded variety.
The difference in performance capability of a 93 vs 92 octane gasoline is not much.
Yes, an engine’s timing could be advanced slightly to take advantage of the extra octane number in 93 vs 92, but yours should be set to take advantage of up to 91, and that’s it.
93 won’t necessarily be better than 92 for your car if the engine isn’t even taking advantage of the extra octane number in the 92.
All that ignores the whole E10 vs E0 gasoline mixture subject too. Is the 92 gas a E0 and the 93 an E10 blend? If so, I’d choose 92 E0 every time anyway. And so on, and so forth…
Ultimately, if you are getting slower-than-expected ETs at the drag strip in a V8 powered Challenger while running 91 octane with the stock tune, you’re best bet on identifying a culprit is to acquire a handheld tuner and start datalogging the runs.
If lots of KR is observed, run higher octane gasoline. If the KR goes down, keep upping the octane until the KR levels off or disappears.
Otherwise you’re just guessing and possibly wasting money on the more expensive gas when it isn’t needed or cannot be taken advantage of (until real problem is identified and resolved).
He's changing the power window assy for manual trying to get a small advantage...he no doubt wants that small difference...
A Guy
A Guy
-
?
-
?
-
?
-
?
-
?
