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Discussion Starter #1
Ever since I changed my oil (Mobil 1 5W30) I get a strong vibration/un-smooth engine when I floor it. This only happens when my RPMs are over 4000. Do not reallynotice this in 1st gerar but in 2nd I notice it everytime. Can't not comment on 3rd-5th gear (too fast). Anybody know what can be causing this problem. Could something have gone wrong with the oil change or is this a new problem. Thanks for your help
 

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Hard to imagine how an oil change could cause this sort of problem. Most likely a coincidence with an unrelated problem starting at the same time.

????Sorry can't be more helpful than that.
 

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Discussion Starter #4
DiscoStu said:
Do you know where the vibration is coming from?
almost sure its from the engine.
 
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