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Long story how this happened, but I ended up with the Boss up on ramps, drained of oil, but no oil to put in it. I had 9 bottles of Mobil 1 5W-50 in the garage, but six bottles were USED oil from a change I had forgotten about. Doh!
I called my wife and asked her to stop at NAPA on the way home from work. She arrived with 9 bottles of Castrol Syntec Edge 5W-50, since they were out of Mobil 1. No big deal, I figured, so I filled the car, started it for a minute, checked it, and then decided it looked too much like rain to go to the track anyway, and put it back in the garage.
As I was cleaning up, I looked more closely at the bottles. It said "Specially formulated for classic cars." WTF?
After some internet sleuthing, here is what I found: Castrol now makes a 5W-50 and a 20W-50 with extra zinc, which is supposed to provide better wear protection for "classic cars". Apparently this oil is only recommended for cars WITHOUT CATALYTIC CONVERTERS. Crap. I just wasted $60 and an oil filter. Luckily I decided at the last minute against going to the track.
So, who knows the FACTS behind what would have happened to my car if I had driven 100 miles round trip plus two hours of track laps? No conjecture, but real knowledge. I read everything from it wouldn't matter at all, to I would have burned my cats in one hour.
Anyone?
I called my wife and asked her to stop at NAPA on the way home from work. She arrived with 9 bottles of Castrol Syntec Edge 5W-50, since they were out of Mobil 1. No big deal, I figured, so I filled the car, started it for a minute, checked it, and then decided it looked too much like rain to go to the track anyway, and put it back in the garage.
As I was cleaning up, I looked more closely at the bottles. It said "Specially formulated for classic cars." WTF?
After some internet sleuthing, here is what I found: Castrol now makes a 5W-50 and a 20W-50 with extra zinc, which is supposed to provide better wear protection for "classic cars". Apparently this oil is only recommended for cars WITHOUT CATALYTIC CONVERTERS. Crap. I just wasted $60 and an oil filter. Luckily I decided at the last minute against going to the track.
So, who knows the FACTS behind what would have happened to my car if I had driven 100 miles round trip plus two hours of track laps? No conjecture, but real knowledge. I read everything from it wouldn't matter at all, to I would have burned my cats in one hour.
Anyone?