Jeepwalker
Senior Member
- Joined
- Sep 8, 2017
- Posts
- 3,379
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- 3,614
- Location
- WI
- Ram Year
- 2012 Reg Cab, 4x4
- Engine
- 5.7 Hemi
A buddy of mine used to get a new company car every 2-3yrs. He was an on-the-road sales exec, and put on a lot of miles visiting distributors, etc. Back in the mid 80's he was supplied with a Caprice/Impala w/V8. For an experiment, after the initial break-in engine oil change he put in Mobil1 and never changed it while he had the car. Nor the filter. He just wanted to see how it would go. This was back in an era when there were lots of magazine and TV ads claiming how amazing Mobil 1 *synthetic* oil was, and you didn't need to change it very often.
He put on like 80k miles, till he got the next car. Obviously he had to add some quarts during those couple years, but he says it wasn't too many. The Mobil-1 always looked really clean, even when he sold it. Now remember, these would have been mostly highway miles. Usually the cars went to auction or whatever the company did with them, but in this case another sales guy from the company (he knew the guy) bought the car as a family car and basically drove it for many yrs and it was handed down to the kid. Until it basically rusted out. At sales meetings the guy who bought the car would tell him how great it was, been real reliable. He never told the guy about his experiment. His buddy had asked what kind of oil he had been using when he first bought the car, but my buddy doesn't know what oil he used after that.
Obviously that's not something I would do on my car, but yeah it was interesting to see how it worked in that case.
Even though it's synthetic, if I were planning to keep a truck for a long time, I'd probably change the trans fluid around the 80-ish mark. If it's mostly highway miles, then maybe a little longer. Just to be safe and try to coax more out of a tranny.
He put on like 80k miles, till he got the next car. Obviously he had to add some quarts during those couple years, but he says it wasn't too many. The Mobil-1 always looked really clean, even when he sold it. Now remember, these would have been mostly highway miles. Usually the cars went to auction or whatever the company did with them, but in this case another sales guy from the company (he knew the guy) bought the car as a family car and basically drove it for many yrs and it was handed down to the kid. Until it basically rusted out. At sales meetings the guy who bought the car would tell him how great it was, been real reliable. He never told the guy about his experiment. His buddy had asked what kind of oil he had been using when he first bought the car, but my buddy doesn't know what oil he used after that.
Obviously that's not something I would do on my car, but yeah it was interesting to see how it worked in that case.
Even though it's synthetic, if I were planning to keep a truck for a long time, I'd probably change the trans fluid around the 80-ish mark. If it's mostly highway miles, then maybe a little longer. Just to be safe and try to coax more out of a tranny.