Originally Posted by jerkylips
I just read this article, some was a bit over my head but it's interesting. My first thought, though, was that if so much of the break in takes place in the first 20 miles, that's basically a test drive. Not many cars have less than 20 miles when you drive them off the lot, do they?
A lot of wives tales and miss-conceptions about oil. Many here just won't believe the facts and hang onto advice handed down from the civil war.
Most of these WK2s have 30-50 miles on them during the drive from the production line to the train and then from the train to the car carrier and then from the carrier to the dealer lot.
Some of you may be saying "but I only have three miles on the odometer" Well the dealers can correct the initial meter reading during prep.
I change oil like I have over the past 20 years and with several motors going strong at 300,000 miles plus, not a hint of sludge. If you are under warranty, use the manufactures recommendation, I changed mine at the 8000 reminder. I switch to full synthetic as soon as its convenient after 12,000 miles and then change the oil and filter annually whether it needs it or not. That is pretty conservative. Anything more often is simply based on the snake oil salesmen and the jiffy lube mafia spreading urban myths.
The exceptions may be racing application or if you tow heavy 100% of the time, or use your WK like a delivery truck.