hamzashakaa
Apr 12, 2012, 04:39 AM
When should I change spark plugs (audi a4 2008)
TxGreaseMonkey
Apr 12, 2012, 05:09 AM
I would change platinum spark plugs every 50,000 miles or 3 years, whichever comes first. After 50,000 miles, performance and gas mileage tends to suffer. If you leave them in more than 3 years, you increase the possibility of them seizing in the aluminum head.