Mustang GT350 Forums banner

1 - 7 of 7 Posts

·
Registered
Joined
·
3 Posts
Discussion Starter · #1 ·
Hi Ladies and Gents,

Don't have the Track Package - I have the Tech Package so no extra cooling.

On hot summer day what I see is Cyl Head Temps of 205-220 which is normal based on past experience, and Coolant Water idiot gauge is vertical seems to be fine.

But Engine Oil is typically 205 to 220 if plenty of speed, but if an accident or slow driving speeds, Engine Oil (even with AC off) can run from 220 to 240. At 240 I will turn it off.

Have had 14 shelbys and Mustang GTs over the years, but I have never seen my engine oil running up to 240. The local Ford service guy says THIS IS NORMAL FOR THE FPC Engine.

The above is during a hot summer day. During the winter, the Engine Oil struggles to get to 160F.

What do you guys think?
 

·
Registered
Joined
·
247 Posts
240, while seems warm, is no danger to modern synthetic oils or the engine. No need to shut it down at 240. I’d say more closer to 300 is a time to start getting it cooled off or shut it down. Obviously you have a ‘16 I assume? Are these temps normal for ‘your’ engine or have you seen a change lately?
 

·
Registered
Joined
·
75 Posts
I think that’s normal. Engine oil doesn’t boil until way over 500F. 12:1 compression will make the engine run hot. My ‘18 doesn’t wake up until the temp is over 200
 

·
Registered
Joined
·
502 Posts
240, while seems warm, is no danger to modern synthetic oils or the engine. No need to shut it down at 240. I’d say more closer to 300 is a time to start getting it cooled off or shut it down. Obviously you have a ‘16 I assume? Are these temps normal for ‘your’ engine or have you seen a change lately?
I totally agree with Galaxy on this one. Syntheic oil doesn’t burn, this is why race engines use it (the term is “oil coking”). Problems arise in conventional oil engines at temps above the 275 mark. No problem with yours. BTW, if the car thinks it’s too hot, it will go into limp mode, you’ll know it.
 

·
Registered
Joined
·
60 Posts
Does the GT350 use a thermostat to help regulate the engine oil temperature? If so having the thermostat checked might be an option. If it were mine and the water temperature and oil pressure were OK then I would not worry about it. Once it starts moving the temp should come back down. The oil temp getting above the water temp is pretty common in the 110 Texas heat when stop and go on Central. :)
 

·
Registered
Joined
·
3 Posts
Discussion Starter · #6 ·
Yes this is one of the early 16's with electronics package. Oil Temps were the same last summer, and jacket water, cyl head temps, and oil pressures run fine. I'll have the oil temp thermostat checked if there is one. Thanks to all for the comments.
 

·
Registered
Joined
·
134 Posts
Watch for A/C problems when oil is very hot. I had a mystery problem with it a few weeks ago.

Dealer couldn't find anything wrong; it has worked fine since they checked it. Proof that diagnostics fix problems.
 
1 - 7 of 7 Posts
Top