Does anyone have a oil temperature gauge installed? Where did you get the reading? What brand of gauge? AND CAN YOU TELL ME WHAT READINGS YOU ARE GETTING FROM NORMAL CITY DRIVING? I HAVE A 02 5.4L 4X4 WITH TOWING PACKAGE.

SAME FOR AUTO TRANS IF ANYONE CAN HELP????

 

I installed a remote oil filter on my truck with a total hose length of fifteen feet to and from the oil filter. I was curious about the oil temp drop from the block to the filter so I used a multi meter with a temp probe on the outside of the hose. This has been awhile but I think I got about a five degree drop in seven feet of hose. I plan to install an oil cooler inline and an oil temp gauge with the sensor at the intake side of the oil cooler using a brass tee. Probably won't do it till wintertime but will post when I do. I'm also going to do the same with my trans cooler which I installed five years ago.

 

Hey guys, well I'm gonna step out on a limb here but I'm almost 98.72665% sure I'm the only one in here with an oil temp gauge. (someone correct me if I'm wrong) I've had mine in for almost two years. Going into my second full summer and one winter so far with the gauge. Here is a quick run down of the results. As a general rule of thumb the oil temp at 2000 rpm and normal driving conditions (no mountains, trailer, O/D off, etc) stays around 95-100* above outside air temp. In traffic or slower speeds/rpm's the oil temp is going to run cooler. Yes I said cooler. Also, under severe loads (pulling a trailer, mountains, increased rpm's, etc) it will tend to run just a little bit hotter. Anything constant, but under the 2000 rpm's, it will run proportionally cooler. For example, around 80-90* over outside temp. Worst case... Pulling a 5000lb trailer over the mountains between LA and Bakersfield, CA in August (104*), 60-65 mph with O/D off (sorry, don't remember the rpm's) the absolute hottest I saw was 215+-5. That is outstanding. Oil is just fine, espicially synthetics, up to and safely around 240+. Now the opposite of that spectrum is that this doesn't hold true in the winter. Earlier I said 100* above outside and cooler at lower speeds but if it's 40* outside my oil doesn't run 140 or below. The coldest I have ever seen it when it's really cold is it will still hang around 145-150. But that's it. It sucks because it takes for ever for it to warm up. My dang gauge doesn't even start until 140. I drove around for a month thinking the dang gauge was broke. My opinion, that's way too cool. I would like to see 200* all year round but guess Ford knows what they are doing. I'll tell you this... These trucks DO NOT need any type of engine oil cooler on them regardless of where you live or what you are using the truck for. The efficiency of the oil system in these trucks is awesome. Let me know if I didn't cover something you were looking for.

 

Great info Galaxy. I wondered about oil temps.

 

Galaxy -

Where do you have the sending unit for your oil temp gauge installed?

What temp does your water temp gauge read once your truck is warmed up?

Have you noticed any correlation between the two?

Thanks for any info you can provide.

 

Sending unit---actuallly it's a temp probe because it's a mechanical temp gauge, not electric. The probe is installed in an in-lilne adaptor made just for temp probes and it's installed in the line for my remote oil filter. Have really good photos in my gallery.

Only have factory water temp gauge and it reads just like everyone else's I'm sure.

Absolutely ZERO correlation between water and oil temps. One gives you no indications what so ever of what the other is doing. Mostly because water temp stays the same all the time, right?? (unless you have other problems of course)

 

A comment on the water temps..... If you are looking at the stock "gauge", then it will never move until you do have a problem...... It's just an idiot light with a needle on it. Same goes for the stock oil pressure and volt "gauge" too. Gas gauge moves however!!

With my electric water temp gauge, it'll sit at 195* for the most part, but under high load conditions, I've seen it go to just below 210*.... Guess where the stock gauge was reading???? Right were it does when my 'other' gauge reads as little as 150*..... Right there in the middle.......

I have no idea at what temp will make the stock gauge move.... Probably when the actual idiot light comes on!! I've heard it's around 220*???