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In Reply to: RE: Oil change: before road trip, or after?… posted by Wellfed on July 1, 2009 at 06:57:12
Either way your splitting hairs. The manufactures recomendation is just that, a recomendation. There are many variables that effect the demands made on and service life of motor oil. In fact mileage is a poor way to determine oil change interval. Do you spend a lot of time idling, stuck in traffic? Do you make a lot of short trips with a lot of warm up cycles or do you get on the highway and drive 75 miles or more between stops? It would be better to use operating hours as a guide but cars aren't with an operating hours meter. Anyway go the extra mile and change the oil before. You can't change oil too often and a car with new oil which doesn't have the hydrocarbon contamination of old oil will run better and may even get a bit better gas mileage. Changing oil will also give you the opportunity to check over the car before your trip. Happy Motoring
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