LiquiMoly?

[AlanS]

My 2013 S60 T5 has always used Mobil One. at 70K, I do lose oil between change intervals. A few quarts over the 5000 mile interval. My mechanic has been suggesting using Liqui Moly, as he has used this in his BMW's and the oil consumption has 'dramatically' diminished for him. I am curious if there are any experiences with this oil and if changing to another product after a 'life' on Mobil One will negatively effect the engine. I do read good reviews about LiquiMoly and their products....just want some 'real life' input.

[MoVolvos]

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It's just okay but expensive. You may be experiencing the start of the oil burning issue, video below. The only oil that I've found can help clean and seal the O-Rings and cylinder wall is the Swepco 306 15W40 or 308 5W40. Have experimented with a lot more brands than what you see in photo since the late 70's.

Currently using Rotella T6 15W40 for warmer weather and 5W40 for cooler changing twice a year but no more than 5K miles. Been using Rotella for maybe 10 years, more on than off.

Many people have tried to clean things up with additives, other oils and many failed as the rings either burn more oil or lose compression. If it was my car I would use the Swepco 306 15W40 while the weather is warm and change it out after a couple months or 2 to 3K miles and then switch to the Rotella T6 5W40 anticipating cooler weather. If you see good results could continue with the 308 5W40 as it contains less zinc but if the oil problem is not reduced the CAT will suffer regardless.

When the motors start to burn oil sometimes it's a quick demise. You can read all about it on other forums like Swedespeed where people document extensively their plight and how the dealer dealt with the early under warranty low mileage burners. I believe there was a class action where Volvo had to replace pistons and or motors. Some people still had problems after the repairs.
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306 Supreme Formula Engine Oil 15w40 Gal.
https://www.amazon.com/306-Supreme-Form ... B00K0TA5BA
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Example of their gear oil. Swepco products are well known in many industries and high performance applications. Reduced the oil consumption on the 98 S70 T5 with 230K miles that I purchased in 2012. The year I signed up with MVS to learn how to tackle all the problems in the $500 car.
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[Krons]

I’d try this as it is designed to clean engines up.

https://shop.valvolineglobal.com/pages/restore-protect

[BlackBart]

Magic?

[Krons]

Magic?

Chemistry magic.

[MoVolvos]

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[BlackBart]

Magic?

Chemistry magic.

Science!

[Krons]

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Cleaning sludged engines is tricky…that video is pretty crazy for 500 miles. I’ve kept an eye on the color of the oil on the dipstick when cleaning a new to me car engine, sometimes a few intervals of cheap diesel oil at 2000 miles is best to start the process. Doing it all at once you’ll be pulling the oil pan and cleaning the pickup screen.

[cn90]

Been through that with many BMW M54 engines with low-friction piston oil rings. Look up "BavarianE39 mod" for BMW. I did that mod and my BMW stops consuming oil.

Back to the Volvo, if you can come with a mod that increases the vacuum in the crankcase, you should reduce oil consumption.

Changing oil brand will not make a difference in oil consumption.

[MoVolvos]

Been through that with many BMW M54 engines with low-friction piston oil rings. Look up "BacarianE39 mod" for BMW. I did that mod and my BMW stops consuming oil.

Back to the Volvo, if you can come with a mod that increases the vacuum in the crankcase, you should reduce oil consumption.

Changing oil brand will not make a difference in oil consumption.

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I think it was in 2002 when I purchased a 95 Plymouth Grand Voyager with the Mitsubishi 3.0L V6. Long story short, original owner reimbursed for part of an engine replacement due to ring issues which caused the CA smog test to fail. Fast forward 50K miles the new engine lost the head gasket. When the shop I used remove the cylinder head they said they've never seen a reman used motor with fresh hash marks.

Had only used Swepco 306 15W40 after installation. The Swepco also greatly reduce the oil consumption of the 98 S70 T5 with 230K miles purchased in 2012. Can't believe been on MVS for over 12 years already .

The reason for the almost no wear in the Grand Voyager and reduction in oil consumption in the 98 S70 T5 is the Tribofilm formation. Increase compression, seals against blowby, less friction from other synergistic formulation and you got a quieter, smoother and more pep car with less oil consumption.

Swepco is break in oil for many high end engine builders due to the Tribofilm formation. Due to its synergistic formulation it also overcomes the slight increase in friction of this film. Incredible stuff but no longer cheap. Since I haven't had an oil burners in recent years beside the cost tripling (under $6 quart) it has not been the go to oil for around 7 years or so. Just found a company having a Close Out so purchased a few and will add a quart to each oil change as an additive.

Film Thickness and Friction of ZDDP Tribofilms
https://link.springer.com/article/10.10 ... 019-1148-9

Swepco oil gains HP!!! We tested this theory!!
https://www.clubtitan.org/threads/swepc ... tby=oldest

Special Price $8.00 Regular Price $15.99
https://www.pscmotorsports.com/manufact ... 15w40.html

Part#: SWE-306-15W-40 $13.99
https://www.pelicanparts.com/More_Info/ ... =c&SVSVSI=

Swepco is renown in the Porsche community
https://www.pelicanparts.com/search/?q=swepco

Jay Leno Video 14:16
https://www.swepcolube.com/products/swe ... ngine-oil/

Jay Leno 14:16. Jay Leno is not familiar with Swepco. The ZDDP concern is insignificant as the amount of reduced oil consumption by the Tribofilm out weigh the small long term effects on the CAT. Only had one high mileage oil burner Sienna van throw a CAT code after switching to Swepco and it went away by itself and didn't returned.


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