Switch or stay?

[MarkC]

My 96 Cherokee 4.0 has 95K on it, and is currently in the cleaning phase of AutoRX treament.
I've always run Castrol GTX 10W30, until the past year, when I started using Chevron Supreme 10W30.
The Jeep uses no oil at all, no burning, no leaking.
Is it worth it to switch to a synthetic after the rinse phase, or does it make sense to stick with what's working? I plan to keep it until it dies one day, and to put that day off as long as I can.
But I can't see myself extending oil change intervals much beyond 5K. I get antsy at 3K now and change it.

I drive 14 miles on the freeway to work and 14 back each day, and around town in Seattle and the Eastside on the weekends.
Thanks

 

[MikeR]

Sounds like you've had pretty good luck thus far. I'd stick with the good (and cheap) dino.

There are a few guys on the board with the Jeep six that might want to chime in...

mr

 

[Frank D]

The vehicle I use where I work is a 95 Cherokee that presently has 201,200 miles on it. It's the 4.0l with an automatic. It only gets PM every 6 months and the oil used is Exxon XD-3 15w-40 with Fram PH-16 oil filters. The transmission has never been serviced with the original trans fluid and filter still in it. Not a trace of red left in the trans fluid color. Alternators, water pumps, fuel pumps and starters go but the motor and trans keep on going strong, still a hard charging vehicle. I put 20,000 miles a year on it so it gets its oil changed every 10,000 miles. It also runs all the time in the winter so I have some heat so lots off idling time also.

[ June 03, 2004, 04:19 PM: Message edited by: Frank D ]