First, I have my oil temp sensor in the blank plug above the oil filter. During normal driving I am seeing 180 degrees F, if I run it hard on the Autobahn I am seeing 200 degrees F. This sucks as I know it is alot hotter than that and I am not getting the right readings. Anyone else using the blanks getting a low reading and where would the sensor be better suited without drilling? If possible?

 

normal driving I'm at 65-70C and on the track it gets no higher than 100C

 

Mine is in the same place. I believe this is a good place for the temp sensor. My temps seem to be similar to what you are getting. During the summer time your temp at autobahn speeds might reach into the 220f.

This is my experience, i may be wrong.

 

If you are running high oil temps in warmer weather, switch to a thicker oil better suited to handle long duration of high temps. I'd either run Mobil 1 15w50, Royal Purple 20w50, or Schaffers 20w50 full synthetic. Drain 10w30 in the summer time with the motor at normal operating temp. It looks thinner than urine. The majority of 4g63 race cars run 15w50 and 20w50 in the summer.

 

I had the car out for a little bit yesterday. WOT for almost 2 miles in 6th gear, up hill grade. I noticed the temp rise to about 90*C. That's the highest its been, ever.

 

The other day I was doing WOT 3rd to 6th, the factory oil temp came with the evo displays 90C.

btw, you are in Germany, why are you using F?

 

2+ hours of cruising at 3500 rpms it gets up to about 190F. doing pulls to dial in the boost controller got it a little over 200F...

 

after cruising for a while, it's about 180*F, maybe a bit more...my warning is set at like 210 and it's never gone that high...(sensor is at the vacant hole near the oil filter)

 

I'm waiting for my Oil temp gauge. I found some How To threads and they do use the top where the hex bolt is used to seal the hole. The manual recommended Mobile 1 10W30. Do you guys recommend different grade for the summer driving as suppose to winter??

 

Mine is normally at 65-70 C but the highest it has gone is 90 C.

 

most people run thinner oil in winter then summer

i just run amsoil 0w-30 signature series oil all year long... that stuff is amazing and expensive.lol

 

I read the Japanese evo magazine, they recommend 15-50 for track, so summer time you can run that too.

 

The best oil I've used is ENEOS 0w-50. The stuff pours like water, even compared to Mobile 1 5w-30, and yet it's so stable, even idling for 15+ min in hot weather Oil psi won't drop below 20.

Mobile 1 5w-30 gets dangerously thin when it is hot. I would recommend a 40 or 50 weight oil for hot summers.

 

that sounds about right mine is usually btw 180-190F normal driving but a little higher if driven hard.

 

during the summer with outside temps around 80F, my gauge reads about 75C. during the winter, it barely reaches 60F