Oil Consumption

Homer1959 · May 31

Is this the new replacement for the valvoline restore and protect, & do not miss the rinsing at the end

https://x.com/Jacquesjazz45/status/2060829208855638312?s=20

Edited May 31 by Homer1959

diyer2 · June 1

We get rid of one instigator, and another one shows up.

asilverblazer · June 2

On 5/31/2026 at 7:56 AM, Chuck FB said:

But as to engine oil usage... having to add some oil every so often was a very common theme...

I haven't changed the oil on ANY vehicle in the last 30 years that had a full load of oil in the drain pan when it was changed. Any MAKE, MODEL, ENGINE, USE, TYPE, LOAD, TEMP, CAR, TRUCK, TRACTOR, ETC... never mattered.

Generally, all are a quart short. I know 'some' will stay in the engine, some in the catch pan, etc.

Never have ANY of them been close (say with in a cup) of being full.

I know this because, I measure every waste oil volume and can compare it to refill volume. A 5 quart engine always has about 4 in the catch pan, every time.

riddler · June 2

23 minutes ago, asilverblazer said:

I haven't changed the oil on ANY vehicle in the last 30 years that had a full load of oil in the drain pan when it was changed. Any MAKE, MODEL, ENGINE, USE, TYPE, LOAD, TEMP, CAR, TRUCK, TRACTOR, ETC... never mattered.

Generally, all are a quart short. I know 'some' will stay in the engine, some in the catch pan, etc.

Never have ANY of them been close (say with in a cup) of being full.

I know this because, I measure every waste oil volume and can compare it to refill volume. A 5 quart engine always has about 4 in the catch pan, every time.

1 qt per 3k miles?

KARNUT · June 2

I find all this amusing and perplexing. In measuring oil I use the supplied tool. It’s called a dip stick. Using the supplied tool I have been fortunate enough according to this thread not to have oil usage problems in all but two vehicles. They use one qt every 2500 miles. Different manufacturers both said within normal perimeters. I have access to quite a few vehicles. They have countdown meters for oil changes. I figured using that and pulling the oil checking device I could actually show no oil usage problems. I’ll show them I thought. Then I realized I can’t prove I didn’t add oil. So I decided, screw it. I know what I know. If people want to believe that all vehicles use oil. That’s fine with me. I’m not going to get in the weeds. It’s comes down to what your definition of what is, is. Seems I heard the analogy before.

Atlas · June 2

Yeah, amusing and perplexing. For sure.

Grumpy Bear · June 2

1 hour ago, KARNUT said:

I know what I know.

:thumbs:

riddler · June 2

1 hour ago, KARNUT said:

I find all this amusing and perplexing. In measuring oil I use the supplied tool. It’s called a dip stick. Using the supplied tool I have been fortunate enough according to this thread not to have oil usage problems in all but two vehicles. They use one qt every 2500 miles. Different manufacturers both said within normal perimeters. I have access to quite a few vehicles. They have countdown meters for oil changes. I figured using that and pulling the oil checking device I could actually show no oil usage problems. I’ll show them I thought. Then I realized I can’t prove I didn’t add oil. So I decided, screw it. I know what I know. If people want to believe that all vehicles use oil. That’s fine with me. I’m not going to get in the weeds. It’s comes down to what your definition of what is, is. Seems I heard the analogy before.

They truly believe they know better. Hopeless

Atlas · June 2

2 hours ago, KARNUT said:

I find all this amusing and perplexing. In measuring oil I use the supplied tool. It’s called a dip stick. Using the supplied tool I have been fortunate enough according to this thread not to have oil usage problems in all but two vehicles. They use one qt every 2500 miles. Different manufacturers both said within normal perimeters. I have access to quite a few vehicles. They have countdown meters for oil changes. I figured using that and pulling the oil checking device I could actually show no oil usage problems. I’ll show them I thought. Then I realized I can’t prove I didn’t add oil. So I decided, screw it. I know what I know. If people want to believe that all vehicles use oil. That’s fine with me. I’m not going to get in the weeds. It’s comes down to what your definition of what is, is. Seems I heard the analogy before.

Ever wonder why so many people run catch cans? Me neither.

I wonder if it's because they don't want ...oil and oil vapor... ...from the crankcase... to be routed back into the intake by the PCV system, where it's then burned in the combustion chamber.

Weird, right?!

I understand we may be getting too "technical" here, but it's worth pointing out those cans aren't just for catching unicorn farts.

Edited June 2 by Atlas

riddler · June 2

21 minutes ago, Atlas said:

Ever wonder why so many people run catch cans? Me neither.

I wonder if it's because they don't want ...oil and oil vapor... ...from the crankcase... to be routed back into the intake by the PCV system, where it's then burned in the combustion chamber.

Weird, right?!

I understand we may be getting too "technical" here, but it's worth pointing out those cans aren't just for catching unicorn farts.

The main reason I am using the catch can is becaus the 6.6L gasser has side port injection so the valves do not get a washing from above with the gasoline mixture before it enters the combustion chamber, therefore the valves get a constant drench of burnt fuel/ oil mixture causing carbon gook build-up.

For this reason alone is why I think its a great thing to do for my motor's longevity. However the vapors continue on to combustion. What does it hurt?

KARNUT · June 2

28 minutes ago, Atlas said:

Ever wonder why so many people run catch cans? Me neither.

I wonder if it's because they don't want ...oil and oil vapor... ...from the crankcase... to be routed back into the intake by the PCV system, where it's then burned in the combustion chamber.

Weird, right?!

I understand we may be getting too "technical" here, but it's worth pointing out those cans aren't just for catching unicorn farts.

Atlas · June 2

3 minutes ago, riddler said:

The main reason I am using the catch can is becaus the 6.6L gasser has side port injection so the valves do not get a washing from above with the gasoline mixture before it enters the combustion chamber, therefore the valves get a constant drench of burnt fuel/ oil mixture causing carbon gook build-up.

For this reason alone is why I think its a great thing to do for my motor's longevity. However the vapors continue on to combustion. What does it hurt?

Hurts nothing, IMO. It's another example of how an engine burns oil. Where do you think the oil vapor comes from?