Oil Consumption

[windfall66]

I recently bought my 1997 FZJ80. It has 148000 miles and new valve cover gasket. Consuming approx. 1 quart of oil per 1000 miles using Rotella 15W40. Tried Castrol high mileage 5W30 and consumed 1 quart way before the 1000 mile mark. No leaks on driveway and no smoke at start-up. What is up with the oil consumption??

 

[fe sus]

Dunno, but my 95 w/ 160k consumes 1qt every 3k miles... 0w40 mobil1

 

[poppy walnut]

Yeah I'd expect a thinner oil to disappear quicker. You sure it isn't leaking somewhere and just burning off? Have you pulled the plugs?

You can always add a bit of dye to the oil and see where it is going.

And welcome!

 

[windfall66]

Thank You, It's nice to be part of Ih8mud and to feel welcome

 

[arndog123]

From what I've read here 1 qt per 1000 miles is "normal" and acceptable consumption.

 

[kidglove13]

Thats not to bad.
If it runs well just keep her topped off and run her.

 

[Sc0-]

My '94 had a similar oil usage problem, corrected after I installed a rebuilt head... I still have a rear main seal oil leak but guess that it's small enough to not notice a difference in oil level for the past 6k miles.

 

[windfall66]

I would think if the head was defective some evidence (i.e. smoke, seapage or oil in coolant) would be evident??

 

[TRDCRUISER95]

1-fitted new PCV & Grommit.
2-lucas stop leak it works really good.

 

[lndcruz]

replace the pcv

 

[MaddBaggins]

I get no noticeable consumption. Even after 6800mi on the oil, It still reads in the high area of the dipstick. I haven't added any "makeup" oil since back in 07.

 

[nodaksn3]

Mine uses a quart about every 2500 miles. It's now at 243,xxx miles. I run Pennzoil 5W30 year 'round. Change it every 3,000 miles.

 

[92FJ]

my 92 is performing stong with 160k on the clock. No oil consumption at all which is surprising to me

 

[maybe_a_80...]

i had about 1 qt/1000 miles going through my truck. then I had Slee replace the oil pump seal, the distributor o-ring seal, the valve cover seal, the PCV valve on the top of the engine, change the plugs, wires, cap, dizzy, and now I do not have noticeable oil consumption.

even if you don't have leakage, there is probably some spot where it's getting away...

 

[96beast]

Its most likely leaky valves. Totally normal, like others said just keep it topped off and you'll be fine.

 

[beachcomberspi]

1 quart per 1500-2000 miles here, runs great. I've always attributed it to a non malicious cause.