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Originally Posted by shakran
guys this is not difficult. READ what I wrote. Double clutching is not necessary to shift gears in a car with syncrhomesh. I never said it was. Again, READ. *carefully*. Double clutching reduces wear and tear on the synchros. It's up to you if you want to learn how to do this. If you get rid of your car before 70 or 80 thousand miles, then there's not much point. But if you hold on to 'em longer, or you drive. . . spiritedly, then it's a good technique to learn.
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I accept your argument about reducing wear on the gearbox, but I've never driven the way you describe, and wonder about the aditional strain that you are placig on the clutch - effectively you ar doubling the number of cycles that it goes through by double clutching every time.
I have no evidence either way, beyond that I have driven many cars for many years, all manual, and ave NEVER had the synchro's on a gearbox fail, but have needed at different times to replace two or three clutches on older cars.
Your comment about getting rid of the car at 70 or 80 thousand miles is interesting - I've had cars with their original engine and geartrain that had done twice this by the time i bought them (as a student, for example). No problems.
My fisrt car was a 20 year old Vauxhall Viva that had a quarter of a million miles on the clock, and was only scrapped when the brakes packed up and it was cheaper to sell it for scrap and buy a replacement than it was to buy a replacement set of callipers and fit them.
