A new engine is tighter and that causes more friction. If the engine had to be bored / over sized for new and bigger pistons then that will cause poor fuel mileage too.
The gas mileage might be down a little at first, but once the engine gets broken in there shouldn't be much difference unless the cam or compression ratio has been changed.
Yes, the tires will ruin your gas mileage overall. Bigger tires weigh more and they're harder to rotate on the vehicle even though they gain greater traction.
Gas mileage will be right about zero, because if you put gas in a diesel, you'll ruin it.
It will really mess up the fuel mileage,and driveability
No, you will ruin your car. A Chevy engine should not be put into a Porsche Boxter. I would recommend if you have the money, to buy an engine that is made by porsche that can go faster than your boxster.
I hoped that nothing would ruin my day.
Don't ruin the party.Why did you ruin our date? When speaking of an ancient location, it is called ruins, not ruin for one site.
More air, more combustion, more fuel use. Amazing how much of a difference it can make.
Why would you want a dog to be aggressive. That's sick. Why would you want to ruin that puppy's life. If you want to ruin a life get a life, and ruin your own.
yes but will ruin your car rims and springs
No why would it
NO! buy a stupid donk to put ignorant ghetto rims on. don't ruin a camaro.
why would u want to? and ruin them.