Question about 1999 Isuzu Trooper

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1998 trooper 3.5 l oil consumption

Is it normal for this model to burn oil. or is it because of wasted cyl. walls due to high miles..

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Hi there and sorry to say... I have a 99 trooper with the 3.5 in it and I took it to the dealer last year to get an O2 sensor installed. While I was there, I spent alot of time with the mechanic while he was working on my trooper....asking questions and so on. Well, one of my questions was the same as you asked and his response was, "the 3.5 came out and lots of people would drive them like most will now days and just put gas in them and go and never really check the oil till it's too late and the engine locks up".

Well that kinda scared me, especially since I had only had it for about 6 months. I felt like I had been taken! .. However, he said,"the gage will read properly, good pressure and bad. However, it will not alert you to low oil pressure, like an oil light or buzzer, so you really keep a watchful eye on it, along with checking the oil on at least a weekly basis".

That was a little over 2 years ago, June 2006 with 80K miles on her. I change the oil on a consistant bases and add oil on a weekly basis. Now she has over 150K miles on her. I feel confident that there is at least another 150K stress free miles to go.

Hope this helps!

Posted on Oct 30, 2008

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I have had my 1999 Isuzu Trooper, with the 3.5l 6cyl., for about three years. It has the same issue with the oil consumption. At every fill up I add a quart of oil. I had become accustom to doing this and thought nothing more about it. I LOVE THIS VEHICLE!! After taking recently to an oil change visit the mechanic said that all his vehicles that have over 100,000 miles on them, he will change to 15/40 diesel oil. So I gave it a shot. I now have filled my trooper up 3 times and have only had to add about 1/2 quart of oil. I think this works. It also has quitted much of the noise in the engine compartment. My wife even commented on how quit it was. Hope this helps others.
Rick

Posted on Jun 21, 2009

Shes got 154.000 k

Posted on Oct 17, 2008

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No that is deffinitly not normal for the rate of oil consumption. how many miles does it have on it?

Posted on Oct 15, 2008

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