REVscene Automotive Forum - View Single Post - Dyno testing fuels - Big difference between Shell 91 and Chevron 94

bcrdukes · 06-23-2021, 06:29 AM

+1

When I was running the E36, the car performed better* and mileage was often better than compared to Chevron (mildly) but better than Esso and Petro Canada, which has never worked well for any of my cars.

I ran Esso here for a while since moving to Toronto because they were everywhere / convenient but since switching to Shell, mileage is far better and consistent. I could not get consistent results with Petro Canada, and Esso was hit and miss.

I recently got a tune on the Boxster and after a few tanks of Shell vs. Esso 91, mileage and acceleration is better on Shell. Esso has been a mixed bag. I don't think I'll ever fill up with Petro Canada here.

*Better being consistent results with mileage and butt dyno feel.

06-23-2021, 06:29 AM	#90
bcrdukes RS Veteran Join Date: Dec 2001 Location: Your Location Posts: 34,111 Thanked 15,664 Times in 6,627 Posts Failed 562 Times in 377 Posts	+1 When I was running the E36, the car performed better* and mileage was often better than compared to Chevron (mildly) but better than Esso and Petro Canada, which has never worked well for any of my cars. I ran Esso here for a while since moving to Toronto because they were everywhere / convenient but since switching to Shell, mileage is far better and consistent. I could not get consistent results with Petro Canada, and Esso was hit and miss. I recently got a tune on the Boxster and after a few tanks of Shell vs. Esso 91, mileage and acceleration is better on Shell. Esso has been a mixed bag. I don't think I'll ever fill up with Petro Canada here. *Better being consistent results with mileage and butt dyno feel. __________________ Stock & Noob Meet 2026 - Stay Tuned!