Another RS4 In For Our Carbon Cleaning This One Is From West Virginia!
#5
FSI/Direct Injection
#6
Does it actually build up beyond just coating the side walls? What ill effect has this documented to cars? When I worked at LR the techs would notice this build up after like 15k miles. It caused no problems on cars up to and past 100k.
#7
It builds up on the valves as well. We've seen verified power loss in the upper RPM's. 15-25HP at the wheels depending on the car!
#10
Cool- good to know. I guess the rover folk weren't paying attention to their performance. Would using an oil with different additives help prevent the buildup?