Haven't been keeping up here much any more, so I thought I'd throw a line out and see what people think. My 89 Park avenue has 237,000 miles on it which means that the engine and tranny are just about to turn 300k.(swapped from my totaled 278k lesabre ) It's a 3800 V6 of course. Here's a couple UOAs from a while back. I replaced the timing chain about 10k miles ago, other then that nothing has been done to the engine. I drive 40 miles one way to work every day, plus we've been taking my car around town lately. My drive is 70mph with stop lights the whole way. I used to run Chevron, since it was so cheap, but now that deal is gone. Wal-mart also stopped carying Havoline, so I'm unsure what to go with. What do you guys think?