In Isuzu engines the DOHC engines are Interference, the SOHC ones are non-interference. This is common for most manufacturers but not a "rule". Also 99 or 00 and newer have a 105K mile inte… (View Post)

All car manufacturers require you to check your oil every 1k miles and it can be down 1 quart. Very few motors have blown on these vehicles actually and the 3.5 is a good motor if you check the oil. … (View Post)