Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums - Camaro5.com - View Single Post - Gas attendant put 87 octane in my car (LS3)

forespeed · 07-16-2015, 11:43 PM

When I purchased my 2013 ZL-1 it had 37 miles on it from the dealers owner testing it I guess.
I didn't know anything about the low octane usage but I put 93 in at every fill up. After several months of disappointing performance I had the car dyno'd in preparation for an upgrade and tune. The results of the Dyno showed the car down about 45hp at the rear wheels. The upgrade I had done was advertised as a plus 50hp. The actual results were a plus 91hp at the rear wheels.
I never heard of the fuse pull so it took a tune to change the car back and the tuner ask if I wanted 87,91 or 93 set in the ECM and I chose 93.

07-16-2015, 11:43 PM	#21
forespeed Drives: 2013 Camaro Convertible ZL1 Join Date: Dec 2013 Location: Saginaw,MI Posts: 53 View My Garage	Effects of low octane table When I purchased my 2013 ZL-1 it had 37 miles on it from the dealers owner testing it I guess. I didn't know anything about the low octane usage but I put 93 in at every fill up. After several months of disappointing performance I had the car dyno'd in preparation for an upgrade and tune. The results of the Dyno showed the car down about 45hp at the rear wheels. The upgrade I had done was advertised as a plus 50hp. The actual results were a plus 91hp at the rear wheels. I never heard of the fuse pull so it took a tune to change the car back and the tuner ask if I wanted 87,91 or 93 set in the ECM and I chose 93.