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Type: Posts; User: RedDmax

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  1. I have never even heard of this problem until the...

    I have never even heard of this problem until the last week. My wife drives a 2008 Yukon XL 5.3 that we've had since new. The last oil change (Mobil 1 since new) I was 2 qts low, don't routinely...
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    Tuner for '08 5.3, AFM problems????

    My wife's 2008 Yukon XL has 122k miles on it and has recently started loosing oil somewhere. I have used nothing but Mobil 1 in it since the first oil change and was 2qts low at the last oil change...
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