Oil Temp - 16 Valve

[Egyvalver]

Cruising along the oil temp usually sits at 100-102, a couple of degrees hotter on a motorway run. When stuck in traffic it can (although rarely) rise up 112-114, although this soon goes down when you get on the move again.

It has new oil in it and i replaced the oil cooler with a new genuine one a year or so back when this started happening. Previously it had nearly always run at 96-98, rising to 100-102 if I was at 85-90mph on the motorway. This all started after the car had been laid up for 6 months whilst i was out of the country. Since this started happening i have also noticed that the heater is not working properly - after the car has got up to operating temperature the heater then goes cold. I assume this is something to do with the bypass valves but could they be related?

Any ideas of what i could try next? Cheers

[Judderi]

Well if water isnt reaching the heater matrix then it will run a little hotter as the matrix is basicly a small radiator. However your temps are fine really and i would not worry.

[Egyvalver]

I know, I know, I know - I shouldn't worry about these things, there are far more important things in this world to worry about...but I do!!!

Thanks for putting my mind at rest

[jezza16v]

The oil temps sound spot on to me. I've recently changed my stat etc. to bring the oil temps up to those levels. 

[The Hoax]

My valver is doing the same as yours just now. I suspect that the cooling fan is not cutting in and have bought a new sensor to fit when I get time. I would worry about the heater going cold. Does it use a lot of water?