tidmarshsmiths5
Active Member
- Joined
- April 20, 2015
- Messages
- 74
- Reaction score
- 0
- City, State
- Greenville, South Carolina
- Year, Model & Trim Level
- 1991 Explorer XLT
Well there are a whole host of reasons, most of which I don't know. A big one is engine tolerances. These engines were designed with 195 in mind. You will increase wear with an engine that isn't up to temp. You will increase engine wear. Will it blow up soon without a thermostat? I doubt it. Will it last as long as if it had been running 180+? Not a chance. Without a thermostat your engine might not even get out of open loop mode, and seriously hurt your fuel mileage. Even if you do get warm enough for closed loop, you will still have a slight drop in fuel mileage. I know you live in the south, but I'm guessing there are days you need to defrost your window on a cold morning. Good luck without a thermostat. You could go with a 160 thermostat, but you would be wasting your time. 180 is for those that want a little buffer for really hot days.
So, I'm looking online...how can one say, "OE 195" and another "OE 198"...I think RockAuto even has "OE 190s"...
The local big box auto store has 198 only in the MotoRads.
I did get the fan clutch and radiator cap - I think the fan clutch is the real issue from the volumes of articles I read on these 1st Gens. Soon to find out.