Post by
hbrown »
https://forums.nicoclub.com/hbrown-u19101.html
Fri Feb 11, 2005 4:35 am
249,000 on a 89' SOHC- runs better now than it did at 100,000- never been into engine- no timing chain rattle- and I drive it like I stole it. Synthetic oil since break in- PTFE treatments @ 150,000 & 200,000. Mobil 1 rocks.
Longetivity of any engine depends alot on how clean the oil is kept, environmental conditions (dusty roads or clean highway) top quality filters and regular maintenance.
Most of these engines are done in by 150K due to faults in the above.
Like I said, mine runs as strong or stronger than it did 5 years ago- but I don't trust it like I did back then anymore- too many things that can go wrong.
Maintained well, these things are just getting broken in good at 75,000 to 100,000 miles. And I wouldn't hesitate to slap a turbo on a well maintained one with that many miles.
I'm not sure if the DOHC holds out the same or not with the more complex timing chains and all- but I would suspect it should have similar life.