How Much Make-up oil does your vehicle use between oil changes?

[NJC]

1984 Accord; 200,000 miles ~1L over 5K miles using 10w30

1989 Volvo 740T; 125,000 miles 3/4L over 3K miles w 15W40; 3/4L over 1500 miles w 10W30

 

[Mitch Alsup]

1996 Toyota 4Runner: 130,000 miles, uses no oil in its 3,000 mile OCI.

1995 Ferrari F355B: 45,000 miles, uses no oil in its 3,000 OCI

Interesting note on the F355B: This car has seen 4,000 miles on race tracks under racing conditions. I used to think I had a moderate oil consumption issue (of around 1 Qt every 1,300 miles). Last week I did a 2,500 mile vacation starting with 1,200 miles on the oil and the dry sump at max (1 Qt above the normal operating level; 2 Qts above min). I checked the oil every day. For the first 1,200 miles the car consumed 1 Qt of oil down to the normal operating point int he dry sump. THEN the oil consumption stopped! and the next 1,300 miles was doen with no oil consumption (measurable) whatsoever (well, mabe a cup).

It seems that the dry sump de-aireator, when the sump is over its mid point, allows oil mist in near vaporous form to be consumed by the vaccum in the intake. Once at the desired sump level, this excessive consumption goes away and oil is consumed by the normal processes, which in my engine are close to no consumption.

 

[lobo11]

2000 Dodge Dakota 3.9L on 10w30 Citgo Super or Ultra-Gard last 24K--uses no oil 3500 oci

2002 Buick Century 3.1L on Havoline 10/5w30 synthetic last 16K,--uses no oil 4000 mile oci.

Dakota saw Pennzoil, & Citgo through its life
Buick saw Pennzoil, Syntec, Chevron, Motorcraft & now the Havoline, no brand showed consumption at 3-4K oci.

 

[MIAMI-DADE]

'99 Grand Marquis with 103k uses 1 quart in 3k using semi/syn 5w20.Going to 5w30 next time to see if it gets better.Don't forget the heat index is over 100 most days&traffic is always tied up big time.

I had my oil changed at the DEALEAR and went to check it today about 1k miles later and noticed the oil cap was missing.

Was just about to head to the dealer or auto parts to order a new when i noticed the cap sitting on top of a computer box next near the fender.I can't believe it didn't fall off in all that time.I will never ever leave any place anymore without opening my hood again.The oil was still clean though.

 

[Brikhead]

1993 Volvo 245, 206k miles, about 1-1.5qts of BC 5W40 every 4k miles

2003 VW Golf 2.0, 52k miles, about 1qt of GC 0W30 every 6kmiles...to be expected with the notorious 'oil burning VW 2.0'

 

[kreigle]

1991 Honda Prelude B21 - 180,000 mi - 1qt every 500 miles average; 1qt in as little as 150 miles highway. Doesn't matter what weight oil I put in, consumption is the same with 15w40 as it is with 5w30.

In the last year I've done 2 AutoRx clean cycles, 2 LC piston soaks 1 MMO piston soak, 4 FP shock doses and 6 normal doses and a new PCV valve. All with no change in oil consumption or head/valvecover cleanliness.

 

[terminaldegree]

Firebird - 4 oz. per 5000 mile oci [6-7 passes down dragstrip per oci]
LeSabre - 1/2 qt. per 5000 mile oci [mostly highway driving, 75-80mph]

Interestingly, the Buick uses it faster toward the end of the OCI

-vehicle mileage and oil used in my sig-

 

[Crashbox]

My '95 Civic with 52K miles, about one pint per 5000 miles or so.

My '77 Chev 454 pickup, it uses more or less about a quart every 1000 miles or so. There may be a leak somewhere (front seal perhaps) since the engine is quite oily.

The old '75 Slant Six Dart, now "retired", it seems it uses about a quart every 1300 miles or something like that.

My old '71 Slant Six Dart used considerably less oil when I stuck a 160 degree thermostat in it. That engine oozed oil seemingly all over the place; it went through a quart about every 150 miles or so! But that engine still ran quite strong 'till the day the rear axle bearing went out in the car. Still have the car sitting in my garage three-plus years later!