As a fairly well seasoned motor trader of some seventeen years now I read your Saturday column with eager interest. Two points really, in the main it never ceases to amaze me that the vast majority of your readers are narrow in their thoughts. Frequently, those members of our society one would have thought would have been blessed with a reasonable dose of common sense are incapable of thinking “outside the box”. Many a time I read a tale of woe referring to some mishap or disaster or other with respect to their cars and the only apparent source of repair is the Main Stealer (sorry Main dealer). No thought is given to the idea of sourcing a used replacement item from the salvage system or indeed a reconditioned unit. My second point refers to a recent letter from a person unknown stating he had moved his fuel injected car ten feet or so and turned the thing off. The answer given to the problem was in my opinion wrong. The cause is not the over supply of fuel and the subsequent shutting down of the fuel but it is caused by the hydraulic lifters being jacked open due to the engine oil being thick and cold, thus no compression in the engine. Once the engine has been cranked for about 45 seconds with the throttle pedal depressed it should start. The answer is to change the engine oil. A thin oil is preferred i.e. 5/30 or even 0/30. So there you are, the true reason for the subsequent non-start.