Quote:
Originally Posted by Mr. Cheap
Would a car have more drag if it's dirty? I don't know that much about aerodynamics, but the original post suggests to me that it might. My very informal observations suggest that washing may improve mileage.
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The surface drag is only 9-percent of the total drag,however,as mentioned in the installment,the relationship to a clean and freshly-waxed finish is firmly established.It's picking nits but its one of the things we do have control over.When I get all my "pick and shovel " work done,I'd like to spray a nice finish on my monstrosities and keep 'em maintained.