What happens if you put the wrong gas in a car?
I tried to be nice by filling up my dad’s car after I borrowed it, but I admittedly bought the cheapest gas at the pump. When I mentioned I had gassed up, my dad checked that I had used “premium” fuel. I lied and said yes! What could happen if I put the wrong type of gas in his car?
Answer provided by
- High octane gas in a car needing regular fuel: Nothing bad will happen, but you’ll have paid more for no reason.
- Low-octane gas in a car needing premium fuel: The car will still operate potentially with significantly reduced power.
- Diesel in a gasoline vehicle or vice versa: Do not start the engine or turn the key. This will send the wrong fuel through the engine and your repair costs will skyrocket. Call a mechanic immediately as all fuel will have to be drained and cleaned from the vehicle.