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#1853523 - 04/11/10 06:24 PM Sludge starting
cassidy Offline


Registered: 09/27/09
Posts: 127
Loc: Jeromesville,Oh
I have a Honda Ridgeline that usually goes around 7,000 - 7,500 miles going by the olm. I was peeking down the fill cap with a flash light. I noticed some sludge starting to biuld up on top of the bolts that hold the rockers down, didnt see any more other than that. It only has 60,000 miles on it. Could this be from running dino for those long oci's, or could it be from running supertech dino all its life? Should I go with a synthetic or switch to a better quality dino?

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#1853535 - 04/11/10 06:33 PM Re: Sludge starting [Re: cassidy]
znode Offline


Registered: 01/03/10
Posts: 258
Loc: San Diego
What kind of Supertech OCIs are we talking about?
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#1853543 - 04/11/10 06:37 PM Re: Sludge starting [Re: znode]
bodeh6 Offline


Registered: 12/22/09
Posts: 617
Loc: Metro Detroit, MI
He said 7000-7500 mile OCI.

I think it is a combo of the supertech and longish OCI.
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06' Subaru Legacy 2.5i 88K+ Miles
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#1853545 - 04/11/10 06:38 PM Re: Sludge starting [Re: znode]
tig1 Online   content


Registered: 01/03/09
Posts: 11543
Loc: Illinois
I would go with a good synthetic. My engines Stay very clean even with 10K OCIs.
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2007 Ford Fusion 186,000 miles
M1 0-20 AFE
2007 Ford Focus 158,000 miles
M1 0-20 AFE
10,000 mile OCIs on both engines
M1 ATF
M1 10-30 in all OPE
MC filters


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#1853546 - 04/11/10 06:39 PM Re: Sludge starting [Re: cassidy]
stumpypete Offline


Registered: 03/16/09
Posts: 100
Loc: va
I'm thinking a good synthetic like PP or PUltra or Mobil1 HM and Purolator Pure One for awhile.

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#1853551 - 04/11/10 06:40 PM Re: Sludge starting [Re: bodeh6]
dakota99 Offline


Registered: 09/27/09
Posts: 448
Loc: indiana
Yeah i'd say 7500 on dino is long.

A good synthetic sounds good. Heck my mom's 08 accord is usually around 5500 on the olm.

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#1853553 - 04/11/10 06:41 PM Re: Sludge starting [Re: cassidy]
CharlieJ Offline


Registered: 06/12/07
Posts: 1396
Loc: FL
Originally Posted By: cassidy
I noticed some sludge starting to biuld up on top of the bolts that hold the rockers down, didnt see any more other than that.


Are you sure that it is sludge? It may just be oil pooling on top of the bolts making it look dark. Is there a lot of varnish?


Edited by CharlieJ (04/11/10 06:42 PM)
_________________________
'07 Mazda3 2.3 50% Parts Master Syn 5w-20, 50% M1 0w-40
'84 Mazda Rx-7 Valvoline Maxlife 10w-30

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#1853554 - 04/11/10 06:42 PM Re: Sludge starting [Re: dakota99]
panthermike Offline


Registered: 04/01/08
Posts: 3273
Loc: Phoenix, AZ
I agree with others, try a syn for a while and see if the deposits clear up.
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'16 Ram Sport 1500;PP 5w20 2K
'15 Lincoln MKC; MC 5w30 25K
'77 F250 "Ol Yeller"; Mix w/ Biotech
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#1853563 - 04/11/10 06:48 PM Re: Sludge starting [Re: CharlieJ]
znode Offline


Registered: 01/03/10
Posts: 258
Loc: San Diego
The severe service interval on the Ridgeline seems to be 10k.

You sure you're seeing sludge?
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#1853573 - 04/11/10 06:57 PM Re: Sludge starting [Re: znode]
defektes Offline


Registered: 09/09/09
Posts: 3216
Loc: Hesperia, CA, USA
Why did you not go with a name brand conventional at least for such a long OCI.
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2002 GMC Sierra 5sp. 4.3L 145K ST3980 E-Core
Chevron Supreme 5w-30, Amsoil Synchromesh In Tranny
Valvoline SynPower 75w-90 Gear Oil In Rear

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#1853580 - 04/11/10 07:01 PM Re: Sludge starting [Re: defektes]
dgee Offline


Registered: 02/03/10
Posts: 427
Loc: Connecticut
i'd say MC5K or PYB for a 5K OCI if you want to stick with dino
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12 Accord 2.4 4k - FF 0W20
01 Camry V6 265k - PU 10W30
96 Jeep ZJ I6 173k - Maxlife 10w30
94 Jeep ZJ I6 365k - Formula Shell 10W30

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#1853591 - 04/11/10 07:05 PM Re: Sludge starting [Re: defektes]
cassidy Offline


Registered: 09/27/09
Posts: 127
Loc: Jeromesville,Oh
Originally Posted By: defektes
Why did you not go with a name brand conventional at least for such a long OCI.
Well, it has been beat into my head before I found this site that all oil is the same, but apparently not. I stuck my finger down the hole and was able to touch one of the rocker bolts, its definetly slimey gunk. The rest of the head that I can see is pretty gloden in color, so I think its pretty varnished up. I never have considered a synthetic before because when I bought the truck I talked to the service manager and he said he didnt recommend using synthetic or Honda would have said so in the manual.

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#1853594 - 04/11/10 07:07 PM Re: Sludge starting [Re: cassidy]
defektes Offline


Registered: 09/09/09
Posts: 3216
Loc: Hesperia, CA, USA
Just switch to a name brand convetinal and it should be able to hold those OCIs. ST oil may be weak in the additive department where it starts to fail after so long. Or if you want to keep using that oil, do not exceed 5k miles IMO, many great UOAs on ST oil for 5k ocis.
_________________________
2002 GMC Sierra 5sp. 4.3L 145K ST3980 E-Core
Chevron Supreme 5w-30, Amsoil Synchromesh In Tranny
Valvoline SynPower 75w-90 Gear Oil In Rear

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#1853595 - 04/11/10 07:08 PM Re: Sludge starting [Re: dgee]
cassidy Offline


Registered: 09/27/09
Posts: 127
Loc: Jeromesville,Oh
Originally Posted By: dgee
i'd say MC5K or PYB for a 5K OCI if you want to stick with dino
Well, I want to go by the olm so maybe I will switch to a synthetic at the next oc. I am stuck on three brands, Valvoline Synpower, Mobil 1, or Penzoil Ultra. Which one shoul I go with?

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#1853597 - 04/11/10 07:08 PM Re: Sludge starting [Re: CharlieJ]
IntegraVT Offline


Registered: 09/03/07
Posts: 337
Loc: Northern NJ
Originally Posted By: CharlieJ
Originally Posted By: cassidy
I noticed some sludge starting to biuld up on top of the bolts that hold the rockers down, didnt see any more other than that.


Are you sure that it is sludge? It may just be oil pooling on top of the bolts making it look dark. Is there a lot of varnish?


I'm going to have to concur with CharlieJ. A peek under a J35's valve cover will usually show dark oil pooled on the bolt heads.
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