370z running higher oil temperature after oil change

16SportZ

So I had my oil changed by a Nissan dealership that I normally go to each time. I had them put in my usual oil (Castrol Full Synthetic 5W-30), and I also had them install the Greddy Magnetic Oil Drain Plug. After the oil change I could immediately tell something was off about the car. My oil temps are averaging 10 degrees hotter than they were before the oil change. I usually cruise at 185 or so and now it stays at 195-200 when I am not even getting on it. It even stays at these higher temperatures in 60F or 80F outside temperatures. When I get on the car it comes back down to 200 and never lower when it used to drop to 185.. It is a 2016 370z Sport Tech by the way. There is only one time this has happened previously and that was when I first bought the car and took it to the dealership and they put the wrong oil in (0W-20) from their bulk they use for other cars. I had them correct it but I didn't find out they did this until 3k miles later. Every time I go in for an oil change I bring my own oil and filter ever since. Any ideas? I scheduled another oil change and I am going to have them put back in the OEM drain plug because I think that the magnetic piece on the Greddy plug might be heating up and causing the surrounding oil to read at a higher temperature. Just a thought. Any help would be appreciated!

I have a dashcam and I watch them live every time I bring it in. You can watch the oil change I'm referring to here:

https://youtu.be/TUWACaBSLH0

Rusty

Drain plug has nothing to do with heating the oil up. What ever gave you this idea?

__________________

浪人 - 殺し屋
"The Difficult Anytime, The Impossible By Appointment Only"
http://www.the370z.com/members-370z-...o-journal.html

40 to 332

I agree with Rusty.

Based on your earlier experience, have you considered the possibility that your "usual oil" was put aside (inadvertently) by the service rep at the front desk of the dealership and not brought to the attention of the oil change "technician", who simply followed his/her regular routine and went to the bulk drum of 0W-20 oil and pumped that into your car? In other words, are you certain that they used the Castrol 5W-30 that you provided?

16SportZ

Yes I have a dashcam I watch them live every time I take it in. They used the oil I provided.

40 to 332

Well, the dashcam rules out that possibility.

16SportZ

I have them on video putting in the oil I provided.

https://www.youtube.com/watch?v=jTUG4BRA-mU

16SportZ

Magnetic portion of the plug might be heating up from the hot oil and causing surrounding oil to read higher temperature or the magnet is messing with the temperature sensor. Either way I'm getting it changed again and we will see if it fixes the issue.

16SportZ

What else could it be if that's all I had done and they used the oil I provided and it happened right after the oil change?

Sent from my SM-S908U1 using Tapatalk

Rusty

There are thousands of magnetic drain plugs installed. You would be the first person with it causing the oil to heat up.

__________________

浪人 - 殺し屋
"The Difficult Anytime, The Impossible By Appointment Only"
http://www.the370z.com/members-370z-...o-journal.html

16SportZ

So what happened then??

Sent from my SM-S908U1 using Tapatalk

ZoomZ

Outside air temperature got higher. Your temp sensor/wiring is faulty. Maybe they got oil in on the sensor. It aint the drain plug.

Spooler

What you are describing above is normal. You also have a factory oil stabilizer on that model unless you have removed it when installing an oil cooler. I see nothing to worry about.

16SportZ

I never installed any oil cooler. It's supposed to come factory with one. They do quite a bit of unbolting below the car when there's only 2 bolts for the oil change since I have a Z1 Aluminum undershroud installed. Oil changes are the only thing I get done by a third party because I don't have a way to lift it.

Sent from my SM-S908U1 using Tapatalk

vtec to vvel

The temps you listed is within normal ranges.

Also, why not DIY the oil changes?

__________________
Don't like what I post? Too bad. I really don't give a sh!t

MZ DAIZY

Not speaking for the OP, but the reason why I don’t DIY is because it’s not worth the time or effort. I found a local Indy shop that changes my oil for $40, BUT rotates the tires, checks the brakes, alignment, fluids, etc. something not easily done on my back with Jack stands on a gravel driveway.

Oh, and he flushes my clutch reservoir for $30 as long as I supply the Motol.

__________________
Stillen Gen 3 CAI, Fast Intentions CBE, Z1 34 Row Oil Cooler, Ecuteck Tuned by Dave at Z1, Clear Bra, Z1 Hood Stuts