Did all the second gen 4runners come with coolers or was there a split year? Was at a bone yard yesterday and noticed a 92 4x4 had a simple metal tube type in front of the rad, my 90 4x4 doesn't appear to have it or it may have been moved for the intercooler- will have to take a close look. I run M1 syn at fluid which to date has given me zero issues.

 

yes .. every truck with P/S had that cooler tube from factory