Originally Posted by jippii ensio
I just walk most of the time but I still need to drive in 2nd gear close to the redline for several minutes to heat the oil and get rid of carbon buildup. I do it once a month or so.
I wouldn't redline it to heat up the oil. I'd let it warm up normally and only then rev it to redline.
And, in any event, running it to redline is not going to help reduce the build-up of crud on the intake valves.