In my area we have regular fuel 87 octane with ethyenol and premium 92 octane without ethyenol. My truck (2007 Chevy 2500HD 6.0L) does not NEED prem. fuel. Is there any issues running prem. fuel? I kn...
There was a 200 mpg carburetor but The Big Oil bought out the inventor so the car companies wouldn't use it. We had to stay with toilet paper roll oil filters (do not use RV toilet paper!) to save money.
Nowadays you can burn gasohol or gasoline in a GM pickup.