baronrenfrew wrote: ↑Sat Nov 04, 2017 9:59 am16: do an "Italian tune up" on your car once in a while. Ferrari owners don't drive their cars much and after a winter of storage they drive like crap. So Italian mechanics figured out that the remedy is to put the peddle to the floor and drive it hard for an hour. This would burn the carbon from the engine and it would run better. A lifetime ago I had a Lada Samara and I delivered Pizza around Kingston. Every two weeks I drove to Montreal or Ottawa (at 120km, nearly full throttle on that little motor), and it would always run better after. The same is true on my dad's Subaru (he'd leave on a trip and I'd drive his car a few times: full throttle from each stop) and it had better acceleration and more power afterwards.
This is also a common problem with VW's that are driven softly. Owners go to the dealer complaining of loss of engine power and they happily charge $3000 for a new turbo when all it needs is to be driven hard to burn the carbon out.
Engines run most efficiently between 85 and 90 km an hour--use less gas at that speed (than 65) too. So, if you drive a lot of back roads or in-town, or granny-drive highways at night because my, I mean your lol night vision is getting crappy, you get drastically more engine wear and a ring of carbon buildup at the top of cylinders. Power and fuel efficiency suffer huge, emissions control components go belly up, and the exhaust will have a noticeable unpleasant odour to the people behind you when you do step on the gas.
So, put the hammer down every once in a while, it's good for your engine, and if the road's empty and the music turned up (Pedal to the Metal by Kazzer is appropriate), good for the soul :)