95 northstar oil consumption

Cadillac Seville / Cadillac STS

  1. caddyproctor

    caddyproctor LVC Member

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    Hi there, I just purchased my 95 sts with the north star early last week. Had oil changed on Thursday and it is now Sunday and 500kms later of hard driving I checked the oil and it was halfway on the dipstick is this normal? I do know the car needs a fuel pressure regulator as it hard starts. Would this cause excessive oil consumption? Thanks
     
  2. opalescent 96

    opalescent 96 Active LVC Member

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    At least on a lincoln if the regulator goes bad the vacuum line will suck fuel into the engine. I would think the Northstar also has a vacuum signal to raise fuel pressure under load. So if the regulator is bad you're getting fuel in the oil, making it thin like water and easy to burn. I would change the regulator asap and change the oil.

    If you check the oil soon after the engine was running it will read lower on the stick btw
     
  3. caddyproctor

    caddyproctor LVC Member

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    I checked it like 35 mins after it was running. It was half way
     

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