Oil Consumption 2000 JGC V-8
 

This Jeep has 125,000 miles. Runs good, no problem. I have used Mobil 1
synthetic oil since it was new.

The engine used almost no oil until I got to about 110,000 miles. After
that, I started noticing that it was using some oil, which I thought was
normal. After now paying closer attention, I see that it now uses one quart
every 3,000 miles.

Is this fairly normal oil consumption ?

Thanks for any comments.

--James--

Re: Oil Consumption 2000 JGC V-8
 

James wrote:
> This Jeep has 125,000 miles. Runs good, no problem. I have used
> Mobil 1 synthetic oil since it was new.
>
> The engine used almost no oil until I got to about 110,000 miles.
> After that, I started noticing that it was using some oil, which I
> thought was normal. After now paying closer attention, I see that it
> now uses one quart every 3,000 miles.
>
> Is this fairly normal oil consumption ?

I wouldn't think so, my 93 ZJ has over 131k and doesn't burn any oil.

Any leaks? Valve covers, vents, oil in the air filter? Bad or restricted
CCV system can suck oil back into the intake. Either way I'd be checking
the plugs to see if you have fouling in any cylinder.

--
DougW

Re: Oil Consumption 2000 JGC V-8
 

James wrote:
> This Jeep has 125,000 miles. Runs good, no problem. I have used
> Mobil 1 synthetic oil since it was new.
>
> The engine used almost no oil until I got to about 110,000 miles.
> After that, I started noticing that it was using some oil, which I
> thought was normal. After now paying closer attention, I see that it
> now uses one quart every 3,000 miles.
>
> Is this fairly normal oil consumption ?

I wouldn't think so, my 93 ZJ has over 131k and doesn't burn any oil.

Any leaks? Valve covers, vents, oil in the air filter? Bad or restricted
CCV system can suck oil back into the intake. Either way I'd be checking
the plugs to see if you have fouling in any cylinder.

--
DougW

Re: Oil Consumption 2000 JGC V-8
 

James wrote:
> This Jeep has 125,000 miles. Runs good, no problem. I have used
> Mobil 1 synthetic oil since it was new.
>
> The engine used almost no oil until I got to about 110,000 miles.
> After that, I started noticing that it was using some oil, which I
> thought was normal. After now paying closer attention, I see that it
> now uses one quart every 3,000 miles.
>
> Is this fairly normal oil consumption ?

I wouldn't think so, my 93 ZJ has over 131k and doesn't burn any oil.

Any leaks? Valve covers, vents, oil in the air filter? Bad or restricted
CCV system can suck oil back into the intake. Either way I'd be checking
the plugs to see if you have fouling in any cylinder.

--
DougW

Re: Oil Consumption 2000 JGC V-8
 

What weight oil are you using? Are you sure it isn't leaking?

Carl


"James" <jnipperxxx@nospamfdn.com> wrote in message
news:xvmdnT1CqaGJT2TZnZ2dnUVZ_rCdnZ2d@comcast.com. ..
>
>
> This Jeep has 125,000 miles. Runs good, no problem. I have used Mobil
> 1
> synthetic oil since it was new.
>
> The engine used almost no oil until I got to about 110,000 miles. After
> that, I started noticing that it was using some oil, which I thought was
> normal. After now paying closer attention, I see that it now uses one
> quart
> every 3,000 miles.
>
> Is this fairly normal oil consumption ?
>
> Thanks for any comments.
>
> --James--
>
>

Re: Oil Consumption 2000 JGC V-8
 

What weight oil are you using? Are you sure it isn't leaking?

Carl


"James" <jnipperxxx@nospamfdn.com> wrote in message
news:xvmdnT1CqaGJT2TZnZ2dnUVZ_rCdnZ2d@comcast.com. ..
>
>
> This Jeep has 125,000 miles. Runs good, no problem. I have used Mobil
> 1
> synthetic oil since it was new.
>
> The engine used almost no oil until I got to about 110,000 miles. After
> that, I started noticing that it was using some oil, which I thought was
> normal. After now paying closer attention, I see that it now uses one
> quart
> every 3,000 miles.
>
> Is this fairly normal oil consumption ?
>
> Thanks for any comments.
>
> --James--
>
>

Re: Oil Consumption 2000 JGC V-8
 

What weight oil are you using? Are you sure it isn't leaking?

Carl


"James" <jnipperxxx@nospamfdn.com> wrote in message
news:xvmdnT1CqaGJT2TZnZ2dnUVZ_rCdnZ2d@comcast.com. ..
>
>
> This Jeep has 125,000 miles. Runs good, no problem. I have used Mobil
> 1
> synthetic oil since it was new.
>
> The engine used almost no oil until I got to about 110,000 miles. After
> that, I started noticing that it was using some oil, which I thought was
> normal. After now paying closer attention, I see that it now uses one
> quart
> every 3,000 miles.
>
> Is this fairly normal oil consumption ?
>
> Thanks for any comments.
>
> --James--
>
>

Re: Oil Consumption 2000 JGC V-8
 

James proclaimed:
> This Jeep has 125,000 miles. Runs good, no problem. I have used Mobil 1
> synthetic oil since it was new.
>
> The engine used almost no oil until I got to about 110,000 miles. After
> that, I started noticing that it was using some oil, which I thought was
> normal. After now paying closer attention, I see that it now uses one quart
> every 3,000 miles.
>
> Is this fairly normal oil consumption ?
>
> Thanks for any comments.

You will find references that claim that one quart per 3K miles is
"normal" for any mileage on the engine. e.g. factories not wanting to
deal with loose engines. I'm not one of them.

Is it burning the oil or leaking it?

Typical causes are valve guides, rings, or just ordinary old leaks.
Compression pretty much the same in all cylinders?

Re: Oil Consumption 2000 JGC V-8
 

James proclaimed:
> This Jeep has 125,000 miles. Runs good, no problem. I have used Mobil 1
> synthetic oil since it was new.
>
> The engine used almost no oil until I got to about 110,000 miles. After
> that, I started noticing that it was using some oil, which I thought was
> normal. After now paying closer attention, I see that it now uses one quart
> every 3,000 miles.
>
> Is this fairly normal oil consumption ?
>
> Thanks for any comments.

You will find references that claim that one quart per 3K miles is
"normal" for any mileage on the engine. e.g. factories not wanting to
deal with loose engines. I'm not one of them.

Is it burning the oil or leaking it?

Typical causes are valve guides, rings, or just ordinary old leaks.
Compression pretty much the same in all cylinders?

Re: Oil Consumption 2000 JGC V-8
 

James proclaimed:
> This Jeep has 125,000 miles. Runs good, no problem. I have used Mobil 1
> synthetic oil since it was new.
>
> The engine used almost no oil until I got to about 110,000 miles. After
> that, I started noticing that it was using some oil, which I thought was
> normal. After now paying closer attention, I see that it now uses one quart
> every 3,000 miles.
>
> Is this fairly normal oil consumption ?
>
> Thanks for any comments.

You will find references that claim that one quart per 3K miles is
"normal" for any mileage on the engine. e.g. factories not wanting to
deal with loose engines. I'm not one of them.

Is it burning the oil or leaking it?

Typical causes are valve guides, rings, or just ordinary old leaks.
Compression pretty much the same in all cylinders?