Quote:
Originally Posted by pawoSD
I use the 5w40 Rotella Synthetic, but I also change the oil every 4k (for all our cars)....so its not an issue. $16.24 a gallon at walmart....nice and cheap. The mobil stuff was way too expensive, and even running it 5k the oil looked way too thick when I drained it, so I stopped that practice quick. My car seems to like the "fake synthetic" just fine....and it does certainly flow better at very low temps, which I am most interested in....otherwise I'd probably run 15w40 dino if I lived in a hot climate.
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Yes, the Delvac is expensive, but at $16/gallon for 4,000 miles... in 10,000 miles, that's $48/gallon. I pay ~$24/gallon for the D-1 and change at 10k, so you're paying twice as much, and spending more time under your car that could better be spent sitting in front a computer typing on some silly car forum. (kidding!) But seriously, the extended drain intervals do save $$$. I get oil analysis each time (not necessary, but I'm anal) and it shows I could easily go to 15kmi intervals if I wanted, but that would be nearly 24 months so I change at 10k anyway.
