View Single Post
Old 07-09-2010, 12:29 AM   #12 (permalink)
comptiger5000
Master EcoModder
 
comptiger5000's Avatar
 
Join Date: Feb 2010
Location: CT, USA
Posts: 544

RaceJeep - '98 Jeep Grand Cherokee (ZJ) 5.9 Limited
90 day: 13.62 mpg (US)
Thanks: 1
Thanked 26 Times in 23 Posts
On a modern engine, 210* is a pretty normal running temp. As long as it's not over 215 - 220 for sustained periods of time, I wouldn't worry.

With a 50/50 mix of water and coolant, plus the pressure in the system, the boiling point is raised considerably.
__________________
Call me crazy, but I actually try for mpg with this Jeep:



Typical driving: Back in Rochester for school, driving is 60 - 70% city
  Reply With Quote