Jeep Renegade Forum banner
1 - 2 of 2 Posts

·
Registered
Joined
·
580 Posts
Around 80°C (176°F) is generally considered normal operating temperature for automatic transmission fluid. Anything over 90°C (194°F) is getting too hot. Transmission fluid, like engine oil, thins out with increasing heat, and wear protection will begin to decline. The change in viscosities can also cause functional problems with the transmission. Hauling your whole family, a large picnic basket while towing your boat up a mountain in Nevada on a hot summer day is probably a bad idea. An additional or larger transmission cooler helps keep the transmission cooler.
 

·
Registered
Joined
·
580 Posts
Anything under 220-230 degrees (F) is considered acceptable. Limiting it to 194*F is ridiculous.
I would say 105°C (220°F) - 110°C (230°F) is borderline normal if you are going uphill or towing, or during prolonged high-speed driving on the Autobahn, but I would certainly consider it above what I expect under normal operating conditions. YMVV.
 
1 - 2 of 2 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top