Reply to "Oil Temp Sender"

Randy, I have two oil temp senders in my car. They are there as a kind of experiment. When I bought my oil temp gauge kit from Hall, it came with a sender and no instructions to mount it. I called Gary up he said there is a small pipe plug just above the fuel pump with the same size threads as the sender. I installed it there, and then was reporting temps significantly higher than others. Seems most other people have their sender located in the oil pan and I was getting readings about 40 degrees higher. I posted a question on this forum regarding this and Jack thought that the location might be responsible for the differnce but he wasn't sure how much differnce there would be. When I bought my 10 qt. oil pan, it had a plug for the oil temp sender. Rather than move the sender from the block, I added one with a switch so that I could check for differnt temps for differnt locations, just to check the results. Turns out there is an almost exact 40 degree difference over all of the various operating conditions, (highway, around town etc.)Jack said this info had verified a study he had seen about engine tests with internal temp sensers that showed significantly higher block temps than oil pan sensors. You might want to search this forum for discussions on "oil temp".

All of that said, if you have an oil pan with a place to mount the sender, I would mount it in the pan. It gets scary on a highway cruise to look at any temperature reading approaching 290- 300 degrees (subtract 40 and you're okay). Plus it seems like I was the only person with the sender in the block and people freaked when it was discussed about how high the readings I was getting.
Hope all this helps.

Gary #06984