Oil Change twice yearly? With Low Mileage

Very compelling post, Paul - thanks for sharing that. You live in a cool climate, and service and drive your car regularly, which has kept the acid levels down, and your chemicals "in suspension".

The only argument against changing it more often is the extra 80 bucks it costs...which for me, isn't a good enough reason. (no need to call Al Gore, Pep Boys loves my used oil). If it were any other engine, any other car, I might be inclined to extend it, but having had two engine failures in less than 80k miles I'm more than happy to spend the money and take the time to change it. Maybe not for everyone, but it works for me.

[JFP in PA]

One major flaw in the argument: We run Castrol Syntec 10W-40 oil in our customer’s cars, and collect UOA’s to determine the correct change interval. The exact same oil in one car had a TBN of 6 after 8,000 miles; another had a TBN of 3 after 5,000 miles……….. How the car is driven matters (and varies) more than most think, and can significantly shorten the oil’s expected life; so basing your oil change interval on someone else’s UOA is wishful thinking at best. If you do not have data on your car, change the oil more frequently, no more than 5-6 K miles…….………

[Brucelee]

What is this WINTER you speak of???

[mptoledo]

Originally Posted by Brucelee

What is this WINTER you speak of???

It's a annual tradition in ohio where you find a good women, gather 3 months of food, 3 months of fire wood, 3 months of beer, buy the NFL and College football ticket, pay your cable bill up and make babies, or at least practice doing it