wrote:
> Hello. I own a 2003 Accord 4-cyl and wondering what, if any
> difference, having mostly highway mileage on my car does to the
> frequency needed for my oil change? The manual recommends every 5,000
> miles/6 months. Does the fact that at least 75% of my mileage comes
> from non-stop interstate highway travel at speeds of 70 mph help or
> hurt me in terms of oil change frequency? Of course, with the long
> commute every day, I get to 5,000 miles before 6 months, and thus not
> only do I spend a ton in gas, but it seems I have to get my oil changed
> every 4 months or so, which costs more money. Any thoughts and input
> are appreciated. Thanks in advance.
>
> Amp
>
if this is your regular routine, and you are serious about this, get oil
analysis done. the lab will be able to tell you how your driving
pattern is loading the oil and how long the ideal change interval will
be. you'll need to do a couple of tests to establish a use pattern for
them and this will cost money, but it's the "scientific" answer to your
question.