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1G 1.8L Oil Pressure issue?

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Magiceton

Proven Member
50
5
Nov 20, 2025
Illinois
I've noticed for some time now that my pressure gauge reads alarmingly low, but tonight when taking it for a test drive I noticed it was lower than normal, so when I got back to the driveway I did my usual test to see if I'm just losing it, and here are the results. Oil in it currently is 5w30 Restore and Protect with a Parts Master filter
Any feedback and/or recommendations is appreciated
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I've noticed for some time now that my pressure gauge reads alarmingly low, but tonight when taking it for a test drive I noticed it was lower than normal, so when I got back to the driveway I did my usual test to see if I'm just losing it, and here are the results. Oil in it currently is 5w30 Restore and Protect with a Parts Master filter
Any feedback and/or recommendations is appreciated
You must be logged in to view this image or video.
Jesus Christ I think my audio got corrupted on that, I advise you don't have sound on
 
I would hook up a real oil pressure gauge and see what PSI readings it is giving you. The gauges in the car can vary wildly. One of my cars the line indicating low is about 30 psi and another one it is 10.

If this is a 4g63 engine You want to see at least 15 PSI at idle once the engine is warmed up. (Your post is a little confusing as to what engine you have. It says 1.8 in the title but the dash has a boost gauge in the video)
 
I would hook up a real oil pressure gauge and see what PSI readings it is giving you. The gauges in the car can vary wildly. One of my cars the line indicating low is about 30 psi and another one it is 10.

If this is a 4g63 engine You want to see at least 15 PSI at idle once the engine is warmed up. (Your post is a little confusing as to what engine you have. It says 1.8 in the title but the dash has a boost gauge in the video)
It has the 4g37, were the clusters back then not 1 style for all? I'm at minimum the 3rd owner of this car
 
The 1.8L clusters don't have a boost gauge and the redline is 6000 rpm.

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Oh- I might convert it over to a vacuum gauge then. Also, I hooked my pressure tester up to it, cold start had between 70 and 80 psi. So I think it's safe to assume it has sufficient pressure
 
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