Today, I filled up using Petro Canada 94 octane. This car is not rated to 94 octane, so results can either be terrible, average or amazing. We will see.
The Petro Canada 87 Octane produced some interesting results, and based on some of the info already out there, it is not surprising. The 87 produced the worst fuel economy numbers, and the car really struggled to deliver, especially at highway and passing speeds. It was a big difference from the first test I did, which was Petro Canada 91 octane. Of course, if your car is not tuned for the higher octane or cannot adjust its timing accordingly, then a higher octane gas makes little difference. But in a car like this, you can see it was worth it.
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
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