yukon denali regular or premium gas

I expect your car will run just fine on 87 octane. Look in the owners manual or on the gas cap to confirm.

Hi what’s the best kind of gasoline for Yukon xl slt 2020

Use premium fuel if you use regular that means that the explosion and the Pistons are going premature which eventually will and can damage your Pistons besides you may hear pinging and your engine won't run ask a fishing as a possible

Why buy an expensive vehicle and then go cheap on the fuel

If the gas in the fuel explodes prematurely it can damage your Pistons that's why you want to use premium and a vehicle that's designed for premium that vehicle you have should be running premium I know because I have a 2005 Yukon