Fuel Blog Part 12 - 94 Octane Results - Proof That Octane Makes a Difference

That's it, I have finished my Fuel Blog testing. This was some serious fun, and got some surprising results. Although I am happy to be able to full up my gas tank once again.

The Petro Canada 94 Octane made a big difference, and produced the best fuel economy numbers between the 87, 91 and 94 octanes. It also got the second best fuel economy overall and the car drove so well with it. The only thing is, for the benefits I got from it, I didn't see a real cost benefit to going to the 94 Octane. So I will be staying at 91 Octane going forward. Stay tuned for a finale video on this project, coming soon.

1. Petro Canada
Mileage - 134.2 kms
L/100km - 14.9
MPG - 15.8
Pros - Combusts well in the higher RPM range, average combined fuel economy.
Cons - erratic idle, hesitates in the low RPM range, acceleration feels average

2. Costco Canada
Mileage - 127.9 kms
L/100km - 15.6
MPG - 15.1
Pros - Smooth acceleration across the entire RPM range, smooth idle, acceleration surges nicely
Cons - average fuel economy

3. Mobil
Mileage - 113.7 kms
L/100km - 17.6!
MPG - 13.4!
Pros - Car started and drove, and didn't blow up!
Cons - Poor Idle, poor power across RPM range, rough idle, engine much louder than normal, terrible fuel economy

4. Canadian Tire
Mileage - 146.0 kms
L/100km - 13.7
MPG - 17.2
Pros - Fantastic Fuel Economy, Smooth idle, engine did not have to work hard, great power band in both low and high RPM ranges, car takes off while barely touching the accelerator
Cons - At this point, none that I can see.

5. Pioneer
Mileage - 126.5 kms
L/100km - 15.8
MPG - 14.9
Pros - Car drove just fine, decent fuel economy, smooth through the entire RPM range
Cons - Not a lot of complaints, but it was not outstanding results compared to others.

6. Esso
Mileage - 132.9 kms
L/100km - 15.1
MPG - 15.6
Pros - Great Fuel economy, smooth idle, great acceleration and top end speed
Cons - One of the more expensive fuel companies in my area.

7. Husky
Mileage - 118.0 kms
L/100km - 17.0
MPG - 13.8
Pros - average drivability throughout the RPM range.
Cons - Poor Fuel Economy, engine was very loud when accelerating, very rough, slightly erratic idle.

8. Shell
Mileage - 111.7 kms
L/100km - 17.9
MPG - 13.1!
Pros - Excellent drivability, smooth RPM range, quiet engine, excellent power through the RPM range
Cons - The current title holder for the worst fuel economy numbers in this entire test.

9. Petro Canada (87 Octane)
Mileage - 109.1 kms
L/100km - 18.3!
MPG - 12.9!
Pros - Idle was stable, it runs
Cons - Poorest fuel economy of them all, no power, especially at highway or passing speeds, engine louder when trying to accelerate or pass

10. Petro Canada (94 Octane)
Mileage - 141.4 kms
L/100km - 14.1
MPG - 16.7
Pros - 2nd best fuel economy overall, great driving performance, smooth power throughout the rpm range, smooth idle
Cons - Not worth the added cost for this car.


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