fungus wrote:angus wrote:Dave, the "spirited" drive probably did as much (or more) good than the additive
A few years ago my wife was having a spot of bother with her Peugeot 306 turbo deisel. The local deisel specialist advised her to drive in third gear on one of the local NSL dual carriageways at 70mph, keeping the engine on the rev limitter.
Before an MOT I always give her car ( she prefers deisels) a blow out by driving it on the rev limitter for a couple of minutes.
Oh I appreciate that the 'Italian tune-up' is a much favoured technique for perking an engine up, especially one that spends a lot of time doing short journeys and/or being driven gently. I think it is a good thing to do, and I use it regularly myself, along with an occasional dose of a suitable additive.