2 yr XG7317/ 20K /3 OCI's/ HPL engine cleaner

[ZeeOSix]

Yes, I magnified the images quite a bit and noticed a slight blue line in that area in the last image you posted. I was thinking it might just be reflected light. Thanks!

Yep, just oil reflecting light ... like a mirror's surface.

 

[xgmad]

On this - how is the temporary unlocking for the VCM enable disable harder on it than pulling from a hard 1,2 up or down shift?

It's under far less load at than say if you are towing something and upshifting under load.

Its not really harder on the torque converter, the problem is that when you go into cruising speed and vcm activates, the torque converter lock up clutch is allowed to slip by temporarily reducing fluid pressure going into the converter to reduce vibrations from the 3 cylinders that are deactivated.

Clutches are not really meant to be intentionally allowed to slip like that, but they are designed to last past mileage warranty.

 

[UncleDave]

Its not really harder on the torque converter, the problem is that when you go into cruising speed and vcm activates, the torque converter lock up clutch is allowed to slip by temporarily reducing fluid pressure going into the converter to reduce vibrations from the 3 cylinders that are deactivated.

Clutches are not really meant to be intentionally allowed to slip like that, but they are designed to last past mileage warranty.

Right this momentary unlock and lock happens at extremely low load 1/10nth throttle or something like that.
The system pulll timing and I think momentarily cuts fuel to make the switch easier.

These are the easiest conditions the clutch will see.

 

[xgmad]

Right this momentary unlock and lock happens at extremely low load 1/10nth throttle or something like that.
The system pulll timing and I think momentarily cuts fuel to make the switch easier.

These are the easiest conditions the clutch will see.

dont be me when i didnt muzzle vcm though, I was towing 2,500 pounds behind and downshifted on the highway, the jolt was incredible.

 

[OVERKILL]

Filter is 24 months old and approx 20K miles over 3 OCI's a 10K, an 8K, and a 2K.
The last 2K was fresh for the HPL to clean into.

Filter has ZERO issues, one ugly pleat, no separation, wiggling, tears, ADBV was intact, and the bypass was sealed.

Surprisingly despite a 58K diet of very high quality SN and SP there is a bit of carbonaceous residue in the bottom of the can.

Not as much as what overkill had, but some.
HPL cleaned out something, where it came from who knows my guess would be ring packs.
Ive never seen anything like this before in the Honda, the lexus yes, but not the honda.

Filtermag caught a visible but minor amount amount particles.

View attachment 149603View attachment 149604View attachment 149605View attachment 149606View attachment 149607View attachment 149608View attachment 149609View attachment 149610View attachment 149611

Yup, that's the same stuff! Just in a lower quantity. Wild isn't it?

 

[UncleDave]

Yup, that's the same stuff! Just in a lower quantity. Wild isn't it?

Pretty remarkable after a lifetime of being fed good stuff.

 

[The Critic]

Pretty remarkable after a lifetime of being fed good stuff.

What do you define as "good stuff?" M1?

 

[UncleDave]

What do you define as "good stuff?" M1?

I cant recall everything M1, Valvoline, Idemitsu and Napa, are some - its all been SN or SN plus.

 

[parshisa]

Nope. Im going to gamble I can keep it trouble free vs an aftermarket override.

What I am going to do is make sure I keep the rings clean which is the largest of the base problem VCM causes.
While Im at it I'll try to keep the intake track as free from carbon buildup as I can.

I'm switching to premium products as the non premium but properly spec'd products allowed build up (from somewhere) to occur inside the factory maintenance specs.

Ill look at the intake tract at belt change time.

I don't believe pistons rings is the issues with the current VCM system. More so it is the torque converter failures. Constant slipping to compensate for VCM induced vibrations and premature fluid degradation leads to torque converter shudder and consequent failure pf this component. if you go on piloteers.org, it's quite scary how many people are having this issues due to VCM. Personally, I've had VCM disabled for over 20k miles now, changing transmission fluid every 7-10k miles and installed ATF cooler.

 

[UncleDave]

I don't believe pistons rings is the issues with the current VCM system. More so it is the torque converter failures. Constant slipping to compensate for VCM induced vibrations and premature fluid degradation leads to torque converter shudder and consequent failure pf this component. if you go on piloteers.org, it's quite scary how many people are having this issues due to VCM. Personally, I've had VCM disabled for over 20k miles now, changing transmission fluid every 7-10k miles and installed ATF cooler.

Gen 3 VCM does not "constantly" slip. It only slips during the transition while pulling spark and fuel.

I can't speak to Pilots but the the 2017 ridgeline has an aux transmission cooler standard.

 

[The Critic]

Gen 3 VCM does not "constantly" slip. It only slips during the transition while pulling spark and fuel.

I can't speak to Pilots but the the 2017 ridgeline has an aux transmission cooler standard.

Lots of torque converter failures in the recent Pilot, RL and RDX - there’s a long thread about it on the Pilot forum.

 

[loneryder]

Filter held up well over 20k & there was some visible debris as you mentioned. Good exercise! Is this the longest filter run you've had on your Honda?

The filter was on for 2k miles not 20k. Edit: I misread. I read it as he changed the filter on those intervals.

 

[ZeeOSix]

deleted ...

 

[Dave Hess]

Nice photos.

 

[UncleDave]

Nice photos.

Thanks. iPhone SE. I buy cheap phones.

 

[53' Stude]

Thanks. iPhone SE. I buy cheap phones.

I have the 2nd gen SE. very happy with it

 

[UncleDave]

I have the 2nd gen SE. very happy with it

its a great phone, the higher end units have better cameras and slightly better screens, but I hate big phones.

 

[GSCJR]

Lots of torque converter failures in the recent Pilot, RL and RDX

Which years are affected? I'll be maintaining a 2020 A-Spec RDX soon.

 

[Dave Hess]

Not to change subject….

I have the same oil filter currently with 45K miles.
I will take it to 60K….. maybe 80K.

Will eventually have Adam do autopsy and post the photos / results.

 

[Brian123]

Not to change subject….

I have the same oil filter currently with 45K miles.
I will take it to 60K….. maybe 80K.

Will eventually have Adam do autopsy and post the photos / results.

Always change the subject, there was a post by Adam where he said if you had a clean engine, you could go to 30K with there Oil Filter. I went 15K on there Oil Filter and that Stude guy cut it open and said it looked fine. Now if an engine was dirty then maybe it would be something else.