Either get higher octane fuel, or retard the timing. That is about the only thing that will help
No.
Knocking
u knocking on it
A loud knocking noise in the motor of a car at high speeds is most likely the engine. There could be another issue with the transmission if the knocking only happens at high speeds.
You need to get your car checked.
It's not illegal to ask somebody if they want there car washed. It's helping them. Just keep your price relativley low and dont damage the car.
Typically, a knocking noise when to use your brakes in the car is caused by your brakes wearing down. This means you need to get them checked out and repaired.
you may have a rod knocking and you need to take it to a shop asap
== == Upgrade your gas. Use premium grade, that will eliminate the knocking.
warped rotors , brake
A higher octane gas or an after market octane booster. But, if your car/truck is knocking, then something is wrong, either your timing is too far advanced or something more in depth..