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2003 ford F250 6.0 287K miles, EVERYTHING stock & original minus normal wear/tear parts (must have gotten one made on a Wednesday) except gauges and coolant filtration. Perform Heavy Duty Service routines even though I don't use it in a heavy duty application, I have had this truck since odometer was 000034, and I missed both when my ODO hit 123456 and 234567!, now waiting for 345678! . With all service being done at local very reputable ford diesel only mechanic that reports to CarFax.
My issue is I want to use gauges to monitor the delta between EOT and ECT, yes I have an app on my phone and yes it does just fine, but I am tired of fumbling with my phone every time, messing with bluetooth issues during long trips and the two tickets I got in CA for "manipulating an electronic communication device" ... I live in a location where if I had an edge monitor, it would get stolen before I'm done installing it... so I went with MAxTow double vision gauges: Boost, EXT temp, Oil Temp, Coolant Temp.
I got a Sinister Diesel oil cap for the "easy" oil temp sensor install, however, it constantly reads 30 degrees lower oil temp then actual ("actual" meaning from OBDLink App and/or FORScan) I already have a hard enough time doing math on the fly to determine deltas let alone adding 30 to it... My deltas on flat ground at 65mph start a 5 degrees and after 2 hours straight, they will get about 10 degrees... well within spec I think. 192/192 idle 202/192 max, and if I stop, quickly goes back to 192/192... driving around town is always 192/192... unless my right foot gets a little excited.
1. With the sensor at the oil filter being 30 deg lower, does this mean the oil cooler is still doing its job? FYI I tried swap the sensors and gauges to ensure it wasn't a sensor or gauge issue.
2. I have read post were you can T into the original sensor location... does this provide accurate temps as the sensor would be higher than the OEM location and possibly not even touching oil?
3. Is it possible to put the OEM sensor on the Filter and the After Market in the OEM spot?
4. Any other locations to put oil sensor to get as close to possible as OEM?
5. If a T is the solution, is there a pre-built kit?
6. Is the OEM temp calculated or actual in the monitoring tools?
I have researched for this, but keep getting posts about delta, T's, or "just use a monitor"... no one specifically states if the temps are different at different locations.
Any help would be great!
Thanks!
******* update... because it bugs me when people don't update *****
Question 1: Oil temp probe was not completely in the oil.... "just the tip" was
Question 3: No not possible, after market has different threads, but can with an adaptor
Question 4: pending
Question 5: See above
Question 6: Actual
The oil temperature at the oil filter is before the oil cooler. You could leave it there if you want a true oil temperature Delta, not a differential between the coolant temperature and the post-oil cooler temperature.
You would have to use a Tee at the existing oil temperature sensor, which provides real values. People have done that, although it's not a normal fitting. I don't remember what size that is, Mark (Bismic) probably does.
lt would be one kluge of a stack of fittings, though.
Not following the thoughts above completely I guess.
The oil in the oil filter is after the cooler also - from the Ford info, and should be essentially the same temperature as the EOT sender.
Not sure what might be wrong w/ the OP's aftermarket setup, except that temperature sending unit must be immersed in the flowing fluid.
On the temp sensor, you can't tee the two sensors together and get accurate readings. The temp sensor needs to be in the flow. The oil in the tee will stagnate and cool off. It will get some heat from the main flow but will be off.
You can tee pressure sensors all day long without issue.
I wonder if the location sinister provides for the port isn't in the main flow. You may be getting stagnant oil that is cooling off. Filter is directly downstream of the oil cooler so temps should be pretty close.
I run an Edge CTS and just use the suction cup mount to the windshield. When I'm in a questionable location I just remove it and place in the glovebox, or take inside with me. It doesn't "look" that expensive fortunately but I'd rather not risk it!
The oil temperature at the oil filter is before the oil cooler. You could leave it there if you want a true oil temperature Delta, not a differential between the coolant temperature and the post-oil cooler temperature.
You would have to use a Tee at the existing oil temperature sensor, which provides real values. People have done that, although it's not a normal fitting. I don't remember what size that is, Mark (Bismic) probably does.
lt would be one kluge of a stack of fittings, though.
Like bismis said the sender must be immersed, I found that the one provided by GlowShift (stubby little probe) was not completely in the oil. Found a "Stainless Steel M12 1.5 to 1/8 NPT Oil Pressure Sensor Tee Adapter for Turbo Supply Feed Line/Oil Pressure Gauge" on amazon... got it today... will install and post updates.
I am not sure I want to get a longer version because I am not sure how far into the oil cap the probe can go...
and toomanytoys are you the one with videos on YouTube!!
And to show more how much I went brain-dead earlier, here is what I set up on my truck.
I ran tubing from the oil cooler housing's test port to my oil pressure and temperature sensors. Then, I ran a 1/8" SS tube to the valve cover so the temperature sensor was continuously in the oil bath. This is post-filter.
This was temporary so I could check the calibration between the factory sensor and my aftermarket gauge. The temperature sensor now resides in my oil pan. Well, for now.
So, with this setup how close were the temps between your gauge and the OEM gauge.
If it was all good, can you run a stainless steel line back to an oil filter cap that has a port threaded into it.
What size are the fittings you used. Do you have any links to these fittings so I can get them.
