What should you do if your engine sounds like it is knocking after you had a very minor accident that only scratched the bumper and did not make a police report?
Find out what is causing the knocking, more than likely this is not related to the accident, and simply a coincidence. If the shop feels it is accident related, then have them (or you) contact the adjuster and advise them of the same...Do not put this off, harder to get understanding if you call the adjuster and say, ''my engine is making this noise and has been for six months since the wreck'' ......... rather than immediately after finding out, you can understand that.....
How do you repair A 1997 Chevy s10 blazer that starts but makes a loud knocking sound and engine shakes and proceeds to turn off?
Lead was added to gasoline to inexpensively increase octane ratings and to also help reduce engine knocking. Increasing octane and reduce engine knocking are exactly the same thing, as the test method to measure octane of a fuel is to see when a standard engine begins knocking. The higher compression ratio the standard test engine can be operated at without knocking, the higher the octane of the fuel being tested.