Burning Oil?

[Ikkesh]

128,000 miles

I baught it used, I Just wish i knew who used to own it to find out service info on it.

[ScottinMA]

The point is...how many miles do you drive before before adding a quart?

[Ikkesh]

1 quart For every 3 Fillups I think.

[Ldub]

Not to be too much of an alarmist, but...

This particular motor (and some say 99's in particular), tends to use oil.
The oil level should be checked at every fill up & the PCV valve ($3-5.00), should be changed every other oil change.
The result of not staying on top of your oil level, is motor replacement, no if's, and's or but's...

Use the handy search function using "oil consumption" for more...

Welcome to the Fam...

[Scott Harness]

99- 118,000 miles, used to burn 1quart every 1200 miles,NOW every 500 miles I've got to get a ring job before Moab. Runs fine,I just have to really watch it.

[Gussie2000]

Oh man,believe me,you're not alone with this one if that makes you feel better.

I bought mines with only 38,780 miles last year around november,my odo reads 45,869 right now & it do burns oil,i drives the average of 15 miles per day;Full syntetic is the key to an longlasting engine (mobile 1 or amsoil),don't abuse it,use 5w-30 on cold weather & 10w-30 on summer. Don't play with this one.

My mechanic who's an former isuzu engine specialist told me that isuzu engineers oversight the facts that the ducts the oil runs throughtout the engine were too big & too few of them so a considareble amount of oil goes into the combustion chamber which shouldn't be happening,specially on high RPM's situations such as be in the highway or express ways when the oil pump pumps high amounts of oil as per demanded by the engine.

Isuzu knows about this issue,but's financially high the amount of money they would had to put out here in order to have that issue solve,which in fact is that isuzu will had to redesign the whole engine or build a new one for each VX,rodeo,axiom,amigo & trooper on the streets so they best move is to ignore the issue,so clever don't they ?

This problem is found in almost all 1998 to 2001 engines my mech told me,he had more that 200 isuzu troopers,rodeos & 2001 axioms just in his shop & about 3 vehicross (included mines) which had a few sticky lifters due the lack of use.

In 2002 isuzu overcome this issue with they new engine.

If you have the meanings $$$$ & if the vehicross means a lot for you,plus the value the VX will have over there & the overall conditions of your VX you should dropped an 2002 isuzu axiom engine with the less mileage you can possible find into it if isuzu had axioms for sale there.

The 2002 engine fits perfectly without any more mods,is like a plug & play stuff.

Plus this engine is more powerfull it comes with 230 HP instead of the 215.

Rebuilt is another option,but the oil conpsumtion can be back again,problally with less amount of loss oil.

When i got aknowledge about this issue my thoughts were : DAMN I SCREW UP,but after a found that many VX's made the 100,000 & + miles i believe mines can go that far as yours.

One of my co-workers have a 2002 rodeo with more then 200,000 miles on the clock & that bastard runs like an champion.

The secret : maintainance,that's all about he says,don't abuse it,just drive as you should drive an vehicule.

[99VC]

I guess I must be lucky with my 99 with 102,689 miles, I drove it up to Vail Colorado from Las Vegas over 650 miles and didn't burn a drop......

[VCrossfan]

Nice info Gussie ! !

[psychos2]

My mechanic who's an former isuzu engine specialist told me that isuzu engineers oversight the facts that the ducts the oil runs throughtout the engine were too big & too few of them so a considareble amount of oil goes into the combustion chamber which shouldn't be happening,specially on high RPM's situations such as be in the highway or express ways when the oil pump pumps high amounts of oil as per demanded by the engine.

This problem is found in almost all 1998 to 2001 engines my mech told me,he had more that 200 isuzu troopers,rodeos & 2001 axioms just in his shop & about 3 vehicross (included mines) which had a few sticky lifters due the lack of use.

1st , most of the oil consumption issues are pcv valve related. There is no baffle in the valve cover to keep the oil away from the pcv valve and when it sticks open the oil is sucked into the intake and burned. Has nothing to do with oil passages. Had it happen to me I was using 1 qt per 3000 miles ,when the pcv valve stuck I used 2 qts in 1000 miles. I no longer have a pcv valve. back to 1 qt per 3000 miles.And no worries about when it the pcv valve will stick again.

2nd ,there is no way any vx with a 3.5 has stuck lifters. they do not have any. They have the camshaft in the head directly above the valves, I believe it is called a direct attack setup. No lifters ,no rocker arms.

also in 2002 they came out with the direct injection 3.5 which has more hp because the fuel is injected directly into the cylinders. I believe this engine is not a direct swap and you would have to change the wiring harness and computer.
I am in no way trying to start anything just correcting incorrect info. shawn

[Gussie2000]

1st , most of the oil consumption issues are pcv valve related. There is no baffle in the valve cover to keep the oil away from the pcv valve and when it sticks open the oil is sucked into the intake and burned. Has nothing to do with oil passages. Had it happen to me I was using 1 qt per 3000 miles ,when the pcv valve stuck I used 2 qts in 1000 miles. I no longer have a pcv valve. back to 1 qt per 3000 miles.And no worries about when it the pcv valve will stick again.

2nd ,there is no way any vx with a 3.5 has stuck lifters. they do not have any. They have the camshaft in the head directly above the valves, I believe it is called a direct attack setup. No lifters ,no rocker arms.

also in 2002 they came out with the direct injection 3.5 which has more hp because the fuel is injected directly into the cylinders. I believe this engine is not a direct swap and you would have to change the wiring harness and computer.
I am in no way trying to start anything just correcting incorrect info. shawn

By the way i replace the PC valve the day i had my VX oil change the 1rst time,still oil compsumtion keeps happening,so no,oils goes into the combustion chamber & burn,the piston rings were manufactured with wrong specs,that's exactly what the mech was explaining me;I'll print your intup & take it to him so let's see who could be wrong.

[Jolly Roger VX'er]

the PCV valve ($3-5.00), should be changed every other oil change.

I was following this advice until I went to Moab & a brand new PCV failed. Second time this has happened to me...first time with AutoZone brand. I took out a perfectly good one before the road trip and put in a new one only to have it (the new one from Advance Auto--Purolator) stick closed.

My engine which usually is very good on oil usage (like 1/4 quart in 3,000 miles) sucked up one quart out of the blue. Caught it when I refueled & checked oil. Than saw oil spray coming out of my breather cap (aftermarket).

My new approach is to just leave a functioning one in and check periodically for any oil spray from breather cap & check dipstick @ fuel stops plus when putzing under the hood. It looks like my set-up allows the excess crankcase pressure to exit out the breather cap (if PCV is stuck) when normally it would be sucking air into the breather cap. I'll carry a spare PCV from now on and be reactive instead of proactive!

[Ldub]

I was following this advice until I went to Moab & a brand new PCV failed. Second time this has happened to me...first time with AutoZone brand. I took out a perfectly good one before the road trip and put in a new one only to have it (the new one from Advance Auto--Purolator) stick closed.

My engine which usually is very good on oil usage (like 1/4 quart in 3,000 miles) sucked up one quart out of the blue. Caught it when I refueled & checked oil. Than saw oil spray coming out of my breather cap (aftermarket).

My new approach is to just leave a functioning one in and check periodically for any oil spray from breather cap & check dipstick @ fuel stops plus when putzing under the hood. It looks like my set-up allows the excess crankcase pressure to exit out the breather cap (if PCV is stuck) when normally it would be sucking air into the breather cap. I'll carry a spare PCV from now on and be reactive instead of proactive!

Good point, I've had a purolator seperate before (top & bottom came apart), but I still like em', IMO, there will be occaisional defects in any brand.

Another thing you can do, is clean em' out with carb/TB cleaner & keep em' as a spare.

[Jolly Roger VX'er]

Good point, I've had a purolator seperate before (top & bottom came apart), but I still like em', IMO, there will be occaisional defects in any brand.

Another thing you can do, is clean em' out with carb/TB cleaner & keep em' as a spare.

I still have the one I bought in Moab (like $12...ouch...but if it lasts it was worth it!!!!) that was a brand I never heard of (sold at one of those Mom & Pop Parts stores!) and it works like a champ..rattles properly when checked...no problems! I figure I'll just keep an eye on it.

Plus, I did have good luck with the PCV sold @ NAPA in the past, but only used that brand twice. It was made in USA and cost like $8.

I still remember the old days..lol..I had a '69 Plymouth Roadrunner and the only pollution control was a PCV...and it was made out of stamped steel with a steel ball bearing inside...NOW that sucker was good for 40+ years I'd bet!!!!!!!