Quote:
Originally Posted by mtla4
I understand but Audi had sludge issues with the 1.8T. Mine had none used to change every 5K. Audi Recommended 10K. Too high IMO. Lot of things can cause sludge but changing the oil once a year doesnt help. It gets cold over here in the winter -40 to 0 to 40 in summer(celcius) in summer. It would be foolish to think that oil can handle that.
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The car takes ambient air temps into account when calculating the oil change interval. It shocks me that people think they know more about when this engine needs an oil change than the experienced engineers who designed and tested the engine. They did cold weather testing you know.