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Old 03-26-2023, 09:31 PM   #41
SammYyYyY
 
Drives: 2018 ZL1 1LE
Join Date: May 2022
Location: Salt Lake City
Posts: 138
[QUOTE=george;11298543]
Quote:
Originally Posted by SammYyYyY View Post
5W-30 oil

Mine seems to vary a bit based on the temperature (obvious). If I do a pull and/or am driving the car spiritedly, then look at pressure at idle directly after, I seem to be more in the 25-27 PSI range. If the car is up to operating temp, but is just sitting at idle, it seems to be in the 29-30 PSI range.

I’ve attached some pictures under multiple conditions with the temperature visible; do I have any reason to be concerned? My powertrain warranty goes out in a week, so if I do have any cause for concern I’d like to have it figured out right now ��

1. First of all, if you haven't bought an extended warranty, buy one now.

2. That first picture looks low but may be associated with how hard you were driving. Still low enough for you to be suspicious. If you were taking any tight turns, that could also be a factor.

3. After hot idle I also see around 29-30 idle. But I would say that could be gauge fluctuations as well. When cold, pressure is in the upper 30's to low 40's.

4. Anything that stays in the low 20's is cause for concern based on what Zach from KATECH has said.

I’m going to make one last call tomorrow (my car goes out of warranty on 3/29/22) and see what we can do warranty wise.

I would say in that first pic I was driving the car quite hard; still street driving nonetheless, but when I do take it out I romp on it pretty hard.

My cold pressure is in the high 30s as well.

Maybe @Katech_Zach could chime in on this? ��
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