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Are you serious? Stay off the freeway? Posted by Mike Lynch [Email] ![]() ![]() In Reply to: Re: engin break in, John Davies, Mon, 29 Jul 2002 23:35:54 Members do not see ads below this line. - Help Keep This Site Online - Signup |
I think the very conservative break-in course you outline may have done some good with old cast iron engines, non-detergent oil and lead in the gas, but todays aluminum and steel overhead cam engines, synthetic oil and unleaded gas are so kind to an engine, and modern engines are so much better assembled and tested that extreme caution you describe is absurd.
The only evidence of "break-in" reported in most car magazines occurs way past "break-in" miles in the 8,000-15,000 mile range when 0-60 times come down a little as the engine loosens up. Here in So Cal there's not a road straight and long enough to warrant a warning against constant speed and varying the throttle stratagies.
In my 29 years of selling new cars I have never heard of a warranty or wear issue blamed on break-in style. Has anybody else? That doesn't mean you can't be as conservative as you want to be, it's your choice.
Conversely I've ridden in and driven some cars that performed much better than similar models because they weren't babied upon break-in.
I can't see manufactures abondoning consertive break-in stratagies: it's not in their interest, but the brief paragraph in the Saab owners manual gives the proper weight to the subject. I'm sure it would be longer, more detailed and more emphasized if it were as critical as you make it seem.
posted by 206.251.225...
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