[0dyfamily]

I have read about people fixing oil burning by removing the plugs and putting a strong cleaner (Berryman B12, I think) in the cylinders. Seems to work, might be more challenging in a V engine

I've heard that, as well, manually dropping in the Berryman B-12 Chemtool into each cylinder via a turkey baster, and then letting it sit.

Yup, as @AlecB says, that's the same mantra I've heard on this forum and other forums (DriveAccord or Acurazine? I cannot remember .... )

Just glad I haven't had to do this, yet. My wife wants to keep the VCM going on her 2012 V6 Accord EX sedan, but at the first sign of trouble, the above will be my mantra followed by installing a VCM defeat device.

I'm a fan of Rislone (p/n 4102) oil treatment (16.9 fl oz yellow bottle). It's been around forever. All motor oil has detergent. Rislone is just a bottle of oil with a lot, lot, lot of detergent in it. It's a pretty simple product. I change oil annually, and use that little yellow bottle of Rislone as a top-off at the 6-to-8 month timeframe (during the fall time) to allow the oil fill in each engine to keep doing its job into the next year's spring time. Maybe it might prove helpful in this situation.

OF

 

[0dyfamily]

VCM difficulties almost universally arise from oil control ring fouling. I've heard this analogy many times: the oil control ring on each piston serves as the "windshield wiper" for its respective cylinder. If it is fouled, it cannot operate properly.

Regrading this thread, lot of good information here. I haven't heard of anybody destroying an engine from a cylinder soak to free up the oil control rings, but @jnissen 's concerns are valid and real ones.

Like @WiiMaster says, if you do that, changing the oil following a cylinder soak is a good idea.

@jnissen brings up a good point ... with VCM now disabled, you're using the detergent resident in the crankcase oil to slowly but surely clean any deposits causing oil burning issues due to fouled piston oil control rings.

Also, detergent resident in the fuel might help as well (for as long as a fouled oil control ring is not doing its job), but to a lesser degree.

This brings up an interesting point. How about attacking this oil ring fouling issue from both sides of those fouled oil control rings on any affected cylinders?

1. Extra detergent in the fuel -- Techron by Chevron added to your gas tank. It is probably the most highly regarded fuel system cleaner on this forum. Also, only use a top-tier high-detergent fuel like Conoco-Phillips, Texaco, Chevron, Exxon, etc.
2. Extra detergent in the oil -- Rislone added to the crankcase. It's just motor oil with a very, very, very high detergent concentration. The only thing glamorous about it is the bright yellow of the plastic bottle it's packaged in.

Essentially, that's what I'm doing with my small "family fleet" of Hondas and Acura (just one):

1. Top-tier fuel is what we use, and each car and Odyssey get a bottle of Chevron Techron once per year.
2. Rislone added to the springtime fill of Mobil 1 oil in the late fall, about half-way to 2/3 of the way into a 1-year OCI.

OF

 

[0dyfamily]

A little back story: we run our motor oil for a full year in all seven vehicles (trio of 9th Gen Civics, pair of 8th Gen Accords, a single 2nd-gen Acura 3.2 TL Type S, and our long-enduring 2002 EX Odyssey). Yes, an annual oil change interval (OCI).

Change the oil in the spring, and we use Mobil 1 High Mileage Extended Performance oil. For filters, we use the Mobil 1 oversized M1-207 for the Odyssey and Acura, AmSOil Ea15K13 for the Accords, AmSOil Ea15K20 for the Civics.

After 6-to-8 months of operation, I add the Rislone in the fall time as a "top off" to bring the oil back up to the top of the dipstick and refresh the crankcase oil's detergent package. The Rislone stays in the cranckase for as little as 4 months to as long as 6 months until the following spring, and that's when we do the annual oil change.

None of our vehicles excessively consume any oil. Our 2002 Odyssey with about 217,000 miles has led a hard life. Lots of max gross weight towing, numerous long-haul family vacations with six people and luggage, lots of short-haul day-to-day driving ... and it consumes only about 20 ounces of oil per 10,000 miles.

In answer to the question, you can keep Rislone in for the duration of your OCI. It's pretty benign stuff. I remember when you could buy a quart can at the service station (along with quart cans of oil ... yes, I am that old). This company has been around for probably close to a century.

I'm no expert in any way when it comes to interpreting the data in both of your captures, but from my not-knowledgeable perspective, you're right ... it seems the second data capture is showing a lot more variance from steady state than your original capture on the first post. My feeling would be, as long as the PCM isn't throwing a code, it's happy. Not a very educated view on my part, but that's what I'm thinking.

OF

 

[0dyfamily]

@AlecB , thanks for the highly detailed updates.

Any set of successful actions an Odyclubber posts to the forum just adds to the "database" of "things that work" when dealing with an engine malfunctioning as a consequence of long term VCM operation.

Your descriptions regarding what you did, and importantly, what happened, are pure gold and reassuring to those dealing with these issues.

OF