Originally Posted By: Emanuel
Is there any proof that an Italian Tuneup is benefitial to an engine? Does it really reduces deposits on the combustion chamber and helps to reduce them also on the piston rings?
Would you consider a 5 minute 3500 rpm run an italian tuneup?
No, have to drive it a LOT harder than that.
Had a car recently where I drove it so hard, it was smoking out the tailpipe after a couple hours HARD run- top speed, long Upstate NY drives at HIGH speeds, etc. No engine overheating of any kind. 4.6 cop car engine. Confirmed with the Crown Vic community that it was carbon being burned off, I really woke that car up. Nothing abnormal.
Smoking a grey-ish smoke while idling, I should say. An ITU can be beneficial.. if done correctly.