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There should be no connection between the two. How many miles since the last tuneup? Are there any unusual gauge readings or warning lights?
A rough start and for a while, on the road. I'm in Canada and to me it goes away when the engine heats up. But the hubby is sensitive to the car and says it's still rough when running for a while. Back in Dec. we brought it to the garage to have a tune-up and it cost $500. and they put in new plugs. I never asked what they were putting in.ImperialCrown said:Just a rough idle or going down the road also? It may set a misfire code and turn on the 'ck eng' light after awhile.
Check spark plugs for carbon and make sure that the correct type (Champion RE16MC?) was installed along with a good fresh set of plug wires.
Around town driving shouldn't bother it too much as long as it can fully warm up. More frequent oil changes may be needed in stop/go type driving.
No, no relation. If you were to wait long enough between oil changes for the oil to be the cause of a rough idle, your engine would be about to seize. Rough idle would have another cause.66coronet said:I've noticed as my oil gets old, one of the signs to change it out is a rough cold idle.
The thicker the oil the valves I think operate differently. I'm still under 70000 on my 2003.