Oil Capacity Question/Verification

Antonm · Monday at 11:46 AM

Jetskier77 said:
Hard to believe you are still talking about this several months later. I would have compared the dipstick to a few other 6.2's and that would have been a definitive answer to this months long drama.

Its okay, the OP has that special one-of-one vehicle that is somehow different from the literally 100s of thousands of otherwise identical vehicles that rolled off the same assembly line that all take eight quarts.

And oh, my 6.2 dipstick looks exactly the same as yours after adding 8 quarts, running the engine, then letting it sit for a few minutes so all the oil drains back to the pan.
...

Vladimir2306 · Tuesday at 3:47 AM

Antonm said:
Its okay, the OP has that special one-of-one vehicle that is somehow different from the literally 100s of thousands of otherwise identical vehicles that rolled off the same assembly line that all take eight quarts.

And oh, my 6.2 dipstick looks exactly the same as yours after adding 8 quarts, running the engine, then letting it sit for a few minutes so all the oil drains back to the pan.
...

About the length of the dipstick, I will tell you a funny observation of my friend on Yukon 6,2. 23 production. He also likes to observe and experiment, just like me. And so, we have a GMC Yukon, with a mileage of 5,000 miles after an oil change, oil 0-20. The person drives calmly, so the oil consumption is low. And so, there are four photos with four different positions of the oil dipstick. The owner stands at the right front fender. Accordingly, the positioning will be relative to it.
Position 1. The oil dipstick is inserted with the ribbed side facing the wearer, i.e. it is directed towards the right front wing. As you can see in the photo, the oil level is just below the maximum.
Position 2. Next, turning the dipstick 90 degrees clockwise, I found the following pattern.The oil dipstick "looks" at the back of the car: As you can see, the level is lower than in Position 1.
Position 3. Next, the oil dipstick is pointed with the ribbed side to the left: The level is the lowest.
Position 4. The oil dipstick is directed with the ribbed side forward of the carIt turns out that the maximum level shows at Position 1, when the ribbed side is directed at the person standing at the right wing, probably most of us insert the oil dipstick and check it that way. but I suspect that the maximum oil level in this position does not mean the maximum oil level in the engine.

23Seven · Thursday at 4:53 AM

Antonm said:
Where are you guys getting that it takes 8 liters vice 8 quarts,,, because GM specifically says 8 quarts or 7.6 liters

View attachment 444618

And really, holy crap, a five page thread because someone can't read a dipstick (or can't count) and thinks that their truck must be special and is different from the literally hundreds of thousands of other identical trucks out there.
...

LOL I was reading forever to see if I was the only one catching all this fake news and crazy logic. Manufacturing Engineers measured two hundred times and cut once to ensure 8 quarts not liters was the optimal amount of oil for all of these motors not some or most but all. They all take 8 quarts and if your dip stick says otherwise then the dip stick is either being used wrong or it is the wrong length. No amount of ridiculousness will change the fact that 8 quarts is the right amount unless you make changes to your engine like a bigger or smaller pan. Thanks for this reply because I thought I was the only one scratching my head wondering how much nonsense could be posted on one thread!

23Seven · Thursday at 5:39 AM

By the way. I just changed the oil in my Z71 with a 6.2. I put exactly 8 quarts and my oil was right at the full mark. My dipstick must be too long because with these reading the required 9 quarts will not fit without going way over! Or the engineers at GM and the GM literature are correct when all experts point to 8 quarts being the correct amount of oil! Craziest thread I’ve ever read! Any rational person would go with the builders literature, service techs, and expert mechanics advice. This is not a thread that should go by opinions just black and white facts!

I hope this is the last thing written on this thread!

“8 Quarts Final Answer”

WalleyeMikeIII · Thursday at 9:24 AM

Vladimir2306 said:
About the length of the dipstick, I will tell you a funny observation of my friend on Yukon 6,2. 23 production. He also likes to observe and experiment, just like me. And so, we have a GMC Yukon, with a mileage of 5,000 miles after an oil change, oil 0-20. The person drives calmly, so the oil consumption is low. And so, there are four photos with four different positions of the oil dipstick. The owner stands at the right front fender. Accordingly, the positioning will be relative to it.
Position 1. The oil dipstick is inserted with the ribbed side facing the wearer, i.e. it is directed towards the right front wing. As you can see in the photo, the oil level is just below the maximum.
Position 2. Next, turning the dipstick 90 degrees clockwise, I found the following pattern.The oil dipstick "looks" at the back of the car: As you can see, the level is lower than in Position 1.
Position 3. Next, the oil dipstick is pointed with the ribbed side to the left: The level is the lowest.
Position 4. The oil dipstick is directed with the ribbed side forward of the carIt turns out that the maximum level shows at Position 1, when the ribbed side is directed at the person standing at the right wing, probably most of us insert the oil dipstick and check it that way. but I suspect that the maximum oil level in this position does not mean the maximum oil level in the engine.

To the degree Possible, I calibrated and aligned your dipstick photos. I would say at the center of the dipstick, positions 1, 3, and 4 are virtually identical oil levels, given capillary action and spread of oil adhering to the crosshatched area. You might argue position 2 is just slightly lower than the others (by one square on the cross hatch area). Position 2 is the outlier, but still by only one cross hatch. Even then, if the scale from the bottom bar to the top is 1qt (32 oz), and there appear to be 8 cross hatches on that scale, then each small square is 4oz (118 ml) of oil. I would say close enough.

But, indeed, it is interesting, must have to do with the angle of the dipstick entering the pan (clearly, since the two measurements taken with the dipstick gauge facing the side of the vehicle are angled on the level).

OR, your friend didn't have the vehicle parked on a level surface (but I believe anyone astute enough to make this observation would be aware that parking on a flat surface matters).

One other note, if you have the air suspension, GM says they do lower the front by 1" vs the back to improve the "aggressive look" while parked.

This is indeed interesting!

Oil Capacity Question/Verification

Antonm

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Vladimir2306

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23Seven

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WalleyeMikeIII

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