can Amsoil ASL 5w30 really stand 25000 miles?
DSteven Offline
Registered: 04/09/04
Posts: 295
Loc: Minnesota-South Dakota
A few years ago in my area, an amsoil dealer did 25000-30000 mile oci's on his taurus. It started running badly, so he brought it in to the dealer with around 92000 miles. Apparently, the cam had been ground down. It was a 92 taurus with a 3.8L v6. From that experience, I would not really recommend running the oil that long. Maybe, if it got new filters and a fresh quart every 3-4K. It is an awesome oil, from what I hear, huh, but any oil for 25000 or 30000...maybe not such a good idea.
: can Amsoil ASL 5w30 really stand 25000 miles?
DSteven Offline
Registered: 04/09/04
Posts: 295
Loc: Minnesota-South Dakota
TomJones76-
The individual that ran that amount in his Taurus was an amsoil dealer. I talked to Frank, the mechanic that repaired that car, which he remembers well, and he said the man followed the instructions and just didn't ahve good luck. He said he was proving his oil point with his Taurus. Unfortuneately, it didn't go well. I did see a car with 202,000 on its clock that had a diet of Amsoil 10-30 since 28000 miles. The individual used Wix oil filters, changing them every 3-4K with a fresh top off quart and ran the oil 12-15K, changing the air filter every 5K. The engine was very clean and ran great! That was a good testimony to Amsoil. It is a good oil, exceptional in fact...but 25,000 miles?...maybe not such a good idea. Tom, I just couldn't recommend, in good conscience at least, driving 25000 miles on any oil. Yes, maybe it will be somewhat adequate under the most ideal conditions...but for a 25000 mile run of miles, what vehicle sees all 25000 miles as idea? I have to quench when trying to get 10000 out of Mobil-1 and changing the filter at 5K. I think of all the different temps (-30'-100'F), short trips, idle time, etc that goes on during that time...and remembering the STS's oil life indicator only went 1400 miles one cold winter before wanting an oil change. All that factored, it just makes 25000 seem very high for a recommendation. That is all. No controversy, just writing from experience.