Hello, first post. I own a 98 durango with the 5.2. I am at 120K and I am about to flush the cooling system and replace the thermostat. Would you guys advise installing a Jet 180 deg thermostat (part no. 10170) or stick with the OEM 195 deg stat? Would I get more or less MPG with the 180? My engine is stock. Thanks for your help.

 

the 180 stat is a good idea int he 5.x series engines, you most likely wont see a difference in mpgs, however it is the temperature that the block was designed to run at and will help with the longevity of the engine

 

Thanks for the reply! Will I still get enough heat this winter? Also, is this the only gasket I will need to replace?

http://www.amazon.com/Stant-25138-Th.../dp/B000C847OU

 

yes you should still get enough heat in the winter, just might take a couple extra minutes to get it. afaik thtas the only gasket

 

You should get enough heat, but think of the heads you will be saving from the heat of the 195 OEM......It's a good call with the 180.

 

Thanks! I went with the Jet. I will be installing it later this week.