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Oil consumption : how to reduce it?

matuva

matuva

Tropical 6.5er
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Location
New Caledonia. An island in south west pacific, cl
My Blazer seems to eat a few oil.

I'm running Shell HELIX 15W40 with no additives.

I found she eats about 0.5 quart for 310~320 miles.

I will change the CDR valve, and think about using a higher viscosity grade, such as 20W50 or
mix some additive in the oil.

What do you think of this one? : http://www.ebay.com/itm/Lubro-Moly-...hash=item27c02e0c57&item=170727967831&vxp=mtr

or any other suggestion to reduce this oil consumption?
 
blow by causes most oil consumption,leaking gaskets and crank seals could cause a lot of oil to leak out on the go. Oil loss through either the exh or intake wheel turbo seals is another cause.
The CDR is usually not sufficient(if at all?) to deal with the exess oil circulating in the crank case gasses when the piston rings leak more and more compression into the crank case as the engine wears.
Synthetic oil usually makes matters worse i find.
Thicker oil don't help either. 15w40 is still the best IMO
Additives are most times just snake oils,i never use any.

My Wifes 95(see sig) used more than a ltr oil in 200 ml when i bought it with 300 k on the clock,No external leaks nor a bad turbo,All of it went trough the CDR into the intake.
After i vented the CDR to the road,oil use stopped almost completely at once.It's got over 400 k on it today.

Been like that for the last 100 k with no ill efect.
 
I needed to add three or more quarts between oil changes (3k miles). Used one can of Restore's Engine Restorer (chrome colored can with black/red letters) for eight cylinder engines with each oil change. Three oil changes later, down to half a quart between oil changes. This was after checking/double checking CDR was functioning to spec.
 
How hot and how hard you running the engine? 500 miles to a quart in 'normal' working hard for a 6.5. Not so normal with regular driving.

With no big leaks from the oil cooler lines it is sometimes cheaper to put oil in it than fix it.
 
Franko914 said:
I needed to add three or more quarts between oil changes (3k miles). Used one can of Restore's Engine Restorer (chrome colored can with black/red letters) for eight cylinder engines with each oil change. Three oil changes later, down to half a quart between oil changes. This was after checking/double checking CDR was functioning to spec.
Click to expand...

Did you have really bad blowby to begin with and did you notice a decrease in blowby?

In general I dont add anything to the oil, as it usually has side affects, such as gumming up the works because it sticks to stuff, or it boils at lower temps than oil, seen it bubble out of a valve cover before.

I just would not use the Restore type additives unless you know for sure its from blow-by, with tons of oil in the turbo housing and intake, and youve checked and compression is actually low. Otherwise it just may be fixing a leak you haven't found, and then you have worse thermal properties from the real oil not transferring as much heat because the sticky stuff attached itself to all the metal.
 
Is it possible that a tune can impact oil consumption? :skep:

I have a multi stage tuned chip: S, F, economy, tow, wild.

All are with EGR delete.

I'm usually running on economy or tow tunes. This morning, I decided to try the F one.

Seems to work well, Caramel (my rig nickname :D ) respond well and look healthy.
Starting from a Stop, I noticed white smoke behind me, then realised that, as I was alone, the only car smoking is Caramel :mad:

I know she is eating oil, but never saw this white smoke. I switched back to Economy, but I can't tell if she is smoking more or less : still smoking

May be she was already smoking and I didn't notice that till today?
Could it be coincidence and somthing else is wrong, like the oil ring, turbo, ?...

anyh thought?
 
Can you post a snapshot of GMTDScanTech so we can see what the IP stuff looks like? You can just open the snapshot in GMTDScanTech and copy and paste the content in the post.
 
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