Quote:
Originally Posted by HKYStormFront
the S4 does not, it has the 340hp v8 from the A8 sedan, the RS4 has the DI 420hp motor
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I very very sure that v8 in the S4 suffers from the carbon buildup as well and actually looses hp unless it's cleaned frequently. (trying ot remember all the details from when I had my R32 and was active on some of the VAG boards).
bottom line: stay the hell away from any German cars unless you like spending money unnecessarily for "extra" maintenance.