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Burning oil with Ultra
- Thread starter Lakersguy
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go back to motorcraft and see what happens i think that oil is good for over 7500 miles or even more someone at the dealer said 10,000 on some ford oci's
Originally Posted By: Lakersguy
UPDATE :
I am at 4k for my first OCI back using MC 5/20w. At 4k miles the truck dip stick is at 3/4 full. So I'm not burning MC at the rate the truck burned PU. I was burning a quart of PU at 2.5k miles. I've done nothing else to the truck but switched back to MC. I have no idea why this is happening.
UPDATE :
I am at 4k for my first OCI back using MC 5/20w. At 4k miles the truck dip stick is at 3/4 full. So I'm not burning MC at the rate the truck burned PU. I was burning a quart of PU at 2.5k miles. I've done nothing else to the truck but switched back to MC. I have no idea why this is happening.
The Ford dealer told me that this can happen. They have no idea why. I think its so weird that this happened to me and my truck. I've owned this truck since new. It had MC at 5k since birth. The first OCI was done at 3k. The truck never burned any oil until the switch to PU. I ran PU for three OCI's of 7.5k miles. The oil burning never stopped. In fact it seamed to get worse. I think the true test will be the next OCI. If it stops burning oil even more having gone back to MC. I'll contact Pennzoil and ask what they think. I'm bummed about this because I stocked up pretty heavy on PU before Walmart stopped carrying it.
Link to First Blackstone report with PU below.
https://bobistheoilguy.com/forums/ubbthreads.php/topics/2298260/Re:_Pennzoil_Ultra_5w/20,_6,24#Post2298260
Link to First Blackstone report with PU below.
https://bobistheoilguy.com/forums/ubbthreads.php/topics/2298260/Re:_Pennzoil_Ultra_5w/20,_6,24#Post2298260
Could it be that contaminants have built-up in the crankcase of your engine (creating a false reading that's higher than normal on your dipstick) and then the engine is operated for an extending period of time where the contaminants burn off, making you think the engine burned the oil when it actually did not?
I'm having the same experience with my wife's Subaru. It hasn't used any PYB, MS5K, M1 0W30, or Castrol Ti since we've had it. But it has burned a quart of PU every 3.5k miles over the course of two 7.5k OCI's.
The horizontal position of the cylinder in Subaru's allows the oil to run down the cylinder wall to the bottom side of the cylinder creating a situation where more oil is burned during the next cold start.
With vertical cylinders, the oil drains into the crankcase, but not with the horizontally opposed Subaru's.
With vertical cylinders, the oil drains into the crankcase, but not with the horizontally opposed Subaru's.
Originally Posted By: 147_Grain
Could it be that contaminants have built-up in the crankcase of your engine (creating a false reading that's higher than normal on your dipstick) and then the engine is operated for an extending period of time where the contaminants burn off, making you think the engine burned the oil when it actually did not?
Now that is a stretch...
No Ford engine is going to have ANY build up from new using a 5K OCI intervals with MC oil...
Could it be that contaminants have built-up in the crankcase of your engine (creating a false reading that's higher than normal on your dipstick) and then the engine is operated for an extending period of time where the contaminants burn off, making you think the engine burned the oil when it actually did not?
Now that is a stretch...
No Ford engine is going to have ANY build up from new using a 5K OCI intervals with MC oil...
Originally Posted By: 147_Grain
The horizontal position of the cylinder in Subaru's allows the oil to run down the cylinder wall to the bottom side of the cylinder creating a situation where more oil is burned during the next cold start.
With vertical cylinders, the oil drains into the crankcase, but not with the horizontally opposed Subaru's.
What you're saying makes sense, but doesn't explain why it didn't burn any discernible amount of four other oils.
The horizontal position of the cylinder in Subaru's allows the oil to run down the cylinder wall to the bottom side of the cylinder creating a situation where more oil is burned during the next cold start.
With vertical cylinders, the oil drains into the crankcase, but not with the horizontally opposed Subaru's.
What you're saying makes sense, but doesn't explain why it didn't burn any discernible amount of four other oils.
I'd rather use an oil that gets past the rings just a little than one that doesn't if the former provides better wear protection.
To me a little oil going past the rings means the rings are riding on the oil film and not on iron.
Maybe I'm full of do do. But something to look into.
Everyone seems to be so proud to proclaim their engine burns no oil.
To me a little oil going past the rings means the rings are riding on the oil film and not on iron.
Maybe I'm full of do do. But something to look into.
Everyone seems to be so proud to proclaim their engine burns no oil.
Originally Posted By: turtlevette
I'd rather use an oil that gets past the rings just a little than one that doesn't if the former provides better wear protection.
To me a little oil going past the rings means the rings are riding on the oil film and not on iron.
Maybe I'm full of do do. But something to look into.
Everyone seems to be so proud to proclaim their engine burns no oil.
Wait till you've been around BITOG awhile, then you'll understand...
BTW I agree fully, though my '07 Grand Marquis with similar engine has yet to use any oil in a 6-8K mile OCI... That includes whatever was in it when I bought it at 14K mi, a couple changes with Castrol blend, a round of QSUD & now M1...
I'd rather use an oil that gets past the rings just a little than one that doesn't if the former provides better wear protection.
To me a little oil going past the rings means the rings are riding on the oil film and not on iron.
Maybe I'm full of do do. But something to look into.
Everyone seems to be so proud to proclaim their engine burns no oil.
Wait till you've been around BITOG awhile, then you'll understand...
BTW I agree fully, though my '07 Grand Marquis with similar engine has yet to use any oil in a 6-8K mile OCI... That includes whatever was in it when I bought it at 14K mi, a couple changes with Castrol blend, a round of QSUD & now M1...
Originally Posted By: turtlevette
I'd rather use an oil that gets past the rings just a little than one that doesn't if the former provides better wear protection.
To me a little oil going past the rings means the rings are riding on the oil film and not on iron.
Maybe I'm full of do do. But something to look into.
Everyone seems to be so proud to proclaim their engine burns no oil.
The only reason this bothers me is because the truck didn't burn MC but burns PU. With a 10k OCI I would go through 2 extra quarts of PU which costs money. Sorta defeats one of the purposes of the extended OCI with PU which is to save some money.
I'd rather use an oil that gets past the rings just a little than one that doesn't if the former provides better wear protection.
To me a little oil going past the rings means the rings are riding on the oil film and not on iron.
Maybe I'm full of do do. But something to look into.
Everyone seems to be so proud to proclaim their engine burns no oil.
The only reason this bothers me is because the truck didn't burn MC but burns PU. With a 10k OCI I would go through 2 extra quarts of PU which costs money. Sorta defeats one of the purposes of the extended OCI with PU which is to save some money.
Originally Posted By: fdcg27
This actually makes no sense.
How does the oil run back into the sump from the upper cylinder head on a Subie?
Clearly, the oil can't just be sitting there.
I can't explain it either, but I know what the dipstick shows.
This actually makes no sense.
How does the oil run back into the sump from the upper cylinder head on a Subie?
Clearly, the oil can't just be sitting there.
I can't explain it either, but I know what the dipstick shows.
I noticed something similar. My last fill was with 5w30 Ultra in the civic in my sig. After a few thousand miles, it was showing a little low on the dipstick so I added some Ultra that remained in the 5qt jug. Did this until I changed it out.
Refilled with QS HM and just hit 4K, zero usage. The civic showed minimal usage before Ultra which means either my car didn't "like" the Ultra or the QSHM is doing a very quick job of swelling stuff up.
Refilled with QS HM and just hit 4K, zero usage. The civic showed minimal usage before Ultra which means either my car didn't "like" the Ultra or the QSHM is doing a very quick job of swelling stuff up.
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