4 ms·

>A modern V8 is absolutely fine with lower octane fuel. True. I do it all the time. Even finer with higher octane fuel. I do that all the time too. Tell me

>A modern V8 is absolutely fine with lower octane fuel. True. I do it all the time. Even finer with higher octane fuel. I do that all the time too. Tell me which one allows you to accelerate better uphill with a loaded pickup truck.

elil17 4y ago
Driving a truck up a hill is not a normal use case. Driving a luxury car is not normal. Driving a sports car is not normal. These are all specialty vehicles. Normal cars do not need high octane fuel. Normal cars do not benefit from high octane fuel. Car and Driver did a study of the effects of high octane fuel on a CRV, F-150, Charger, and BMW M5. Only the F-150 saw a >0.1s improvement to 0-60 time for high octane. High octane showed modest MPG improvements in some cases, but this were not enough to justify the higher costs. The CRV, the only remotely normal car in that study, actually had lower 0-60 performance on high octane fuel. https://www.caranddriver.com/features/a28565486/honda-cr-v-vs-bmw-m5-ford-f-150-dodge-charger/ https://www.caranddriver.com/features/a28565486/honda-cr-v-v... Americans waste $2.1 billion/year on high octane fuel they don't need. https://newsroom.aaa.com/2016/09/u-s-drivers-waste-2-1-billion-annually-premium-gasoline/ https://newsroom.aaa.com/2016/09/u-s-drivers-waste-2-1-billi... I'm not saying not to fill your truck up with high octane fuel. There is a reason to do that. But most people are obviously not driving that around to the grocery store or whatever - it's a specialty vehicle for your farm or work. There's no reason for anyone to fill up their normal, personal car with high octane fuel unless the manual says it's needed.
- MichaelZuo 4y ago
  Normal cars and car drivers certainly drive up-hill.
  - elil17 4y ago
    And they don’t need high octane fuel to do so. It won’t change their acceleration.
    - MichaelZuo 4y ago
      > It won’t change their acceleration. Says who?
      - elil17 4y ago
        Says the Car and Driver study I linked to which shows that normal cars (e.g. the CRV) don't experience improved acceleration or torque from high octane fuel.
        MichaelZuo 4y ago
        The study was conducted on flat ground. Do you understand that cars behave differently on an uphill slope?

elil17 4y ago

Driving a truck up a hill is not a normal use case. Driving a luxury car is not normal. Driving a sports car is not normal. These are all specialty vehicles. Normal cars do not need high octane fuel. Normal cars do not benefit from high octane fuel. Car and Driver did a study of the effects of high octane fuel on a CRV, F-150, Charger, and BMW M5. Only the F-150 saw a >0.1s improvement to 0-60 time for high octane. High octane showed modest MPG improvements in some cases, but this were not enough to justify the higher costs. The CRV, the only remotely normal car in that study, actually had lower 0-60 performance on high octane fuel. https://www.caranddriver.com/features/a28565486/honda-cr-v-vs-bmw-m5-ford-f-150-dodge-charger/ https://www.caranddriver.com/features/a28565486/honda-cr-v-v... Americans waste $2.1 billion/year on high octane fuel they don't need. https://newsroom.aaa.com/2016/09/u-s-drivers-waste-2-1-billion-annually-premium-gasoline/ https://newsroom.aaa.com/2016/09/u-s-drivers-waste-2-1-billi... I'm not saying not to fill your truck up with high octane fuel. There is a reason to do that. But most people are obviously not driving that around to the grocery store or whatever - it's a specialty vehicle for your farm or work. There's no reason for anyone to fill up their normal, personal car with high octane fuel unless the manual says it's needed.

MichaelZuo 4y ago
Normal cars and car drivers certainly drive up-hill.
- elil17 4y ago
  And they don’t need high octane fuel to do so. It won’t change their acceleration.
  - MichaelZuo 4y ago
    > It won’t change their acceleration. Says who?
    - elil17 4y ago
      Says the Car and Driver study I linked to which shows that normal cars (e.g. the CRV) don't experience improved acceleration or torque from high octane fuel.
      - MichaelZuo 4y ago
        The study was conducted on flat ground. Do you understand that cars behave differently on an uphill slope?