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I have a 2010 Lt (4th one)that has 15K and is still on warranty. Since I got it at 10k the engine has Pinged(pinked) on the slightest incline. All I get from the dealer is that its the fuel in AZ and there is not fix for it - try Chevron and Octane additive. While this was better it has not been a cure. Sooner or later the engine will be damaged. I contacted BMW USA who were no help(no surprise) and referred me to the dealer(who suggested Chevron etc in the first place!!)
Pinging (pinking/rattle is the result of poor fuel or bad timing, I have done what I can for the fuel and they say the timing cant be changed.??
Anyone out there any better ideas - PLEASE!!
John
[email protected]

Pinging (pinking/rattle is the result of poor fuel or bad timing, I have done what I can for the fuel and they say the timing cant be changed.??
Anyone out there any better ideas - PLEASE!!
John
[email protected]