Recent Topics
The wonderful folks at IRS
by BJD78
04/19/18 02:45 PM
Grease Gun Holder
by Patrick0525
04/19/18 02:42 PM
Must colleges disclose donations, by law?
by Ed_Flecko
04/19/18 02:32 PM
How Air Filters Are Made At K&N Engineering
by wemay
04/19/18 02:28 PM
Brakes sticking when wet
by mb32
04/19/18 02:24 PM
Toilets: One piece or two
by NibbanaBanana
04/19/18 02:16 PM
Home Network File Server
by fraso
04/19/18 02:15 PM
Bent rims: repairing vs replacing
by mclasser
04/19/18 02:04 PM
Do you wear much jewelry?
by ZZman
04/19/18 02:04 PM
Shade tree mechanic vs corporate employee?
by motor_oil_madman
04/19/18 01:09 PM
I think I'm gonna buy another Crown Vic...
by dogememe
04/19/18 01:03 PM
2005 MB E500 Mobil 1 0w-40 FS - oxidation
by claluja
04/19/18 12:42 PM
Trail Cams
by AirgunSavant
04/19/18 12:04 PM
Using BITOG Knowledge on Your Mechanic
by camrydriver111
04/19/18 11:06 AM
Nissan Frontier
by old1
04/19/18 10:25 AM
Hello
by AirgunSavant
04/19/18 10:02 AM
06 Colorado, Dreaded P0305 Code...GM says SOL
by Brigadier
04/19/18 09:48 AM
Please school me on Camry afs
by andyd
04/19/18 09:47 AM
Quaker State Blend 5W-30 5qt jug $4.50 - Walmart
by 28oz
04/19/18 09:32 AM
So... are sludged engines a thing of the past?
by SubieRubyRoo
04/19/18 08:22 AM
Newest Members
diphon, Auburn_Alum, joekingcorvette, ARP, Sundayrd
64785 Registered Users
Who's Online
101 registered (ArrestMeRedZ, 28oz, alex_at, 4WD, alienyzf, AandPDan, 9 invisible), 1580 Guests and 96 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
64785 Members
68 Forums
281955 Topics
4707255 Posts

Max Online: 3590 @ 01/24/17 08:07 PM
Donate to BITOG
Page 1 of 2 1 2 >
Topic Options
#4725745 - 04/13/18 12:33 PM Rear Main Seal concern???
BAJA_05 Offline


Registered: 02/04/18
Posts: 273
Loc: Pennsylvania
Getting ready to purchase my neighbors 2000 Dodge Ram 4WD 5.2L with the automatic transmission/overdrive tomorrow when he has off work in the morning. He is the original owner and its parked with exactly 93,014 original miles. Climbed underneath it today and noticed the rear main seal has small drops on it. He says he ran exclusively PYB 10W30 with a Mopar filter his whole ownership. What kinda job is it to replace a RMS or would throwing high mileage oils at it be my best bet for now? Does Liquid Moly not also make a product specifically for RMS leaks?

Note -- he bought a brand new 2018 Jeep Cherokee and his wife no longer wants the truck sitting in the driveway. I offered him $2500.00 and he said, "done deal!!!"

Dale


Edited by BAJA_05 (04/13/18 12:36 PM)
_________________________
2017 VW Jetta SE TSI 1.4L Turbo
PP Euro 0W40 & FU
2008 Acura TL 3.2L QSHM 5W20 & FU
2005 Subaru Baja AWD 2.5L N/A 5spd.
PHM 5W30 & ST

Top
#4725756 - 04/13/18 12:42 PM Re: Rear Main Seal concern??? [Re: BAJA_05]
rollinpete Offline


Registered: 03/20/17
Posts: 337
Loc: Westfield, Ma.
You could try using some HM oil and it may stop.
Replacing the seal involves a lot of work, at the minimum transmission has to come out along with the transfer case.
_________________________
Pete.
97 Ford Expl. 4.0 ohv 4wd 5spddrive182k miles
Last Change;
Penn. Plat. HM 5w30
Supertech ST8 (wix), Fram CA8141

Top
#4725758 - 04/13/18 12:42 PM Re: Rear Main Seal concern??? [Re: BAJA_05]
Tdbo Offline


Registered: 08/18/09
Posts: 3193
Loc: Ohio
You could try some HM in it and see if it makes a difference.
IMO, it makes more sense to monitor it, and if it is "only a few drops,"
top off if necessary.
That's what I do on my '03.
Doesn't make sense on an 18 year old truck to replace it unless the leakage becomes severe, or other repairs make the replacement feasible.
_________________________
2012 Honda Accord LX-P 91K
2008 Ford Mustang Pony Package Convertible 16K
2006 Honda Odyssey EX-L 76K
2003 Ford Ranger 3.0 Supercab 104K

Top
#4725768 - 04/13/18 12:49 PM Re: Rear Main Seal concern??? [Re: BAJA_05]
oldhp Offline


Registered: 06/28/12
Posts: 1540
Loc: USA
Valvoline MaxLife High Mileage 10W30 would be my choice for the rest of it's life.
_________________________


Top
#4725784 - 04/13/18 01:05 PM Re: Rear Main Seal concern??? [Re: BAJA_05]
Lubener Offline


Registered: 01/22/11
Posts: 2496
Loc: N.Ohio
For a few small drops, I would do nothing until it puddles on the driveway.
_________________________
The "thinking" man's friend.

Top
#4725792 - 04/13/18 01:14 PM Re: Rear Main Seal concern??? [Re: BAJA_05]
RamFan Offline


Registered: 05/09/10
Posts: 1957
Loc: Illinois, U.S.A
Do 2-3 OCIs with a HM oil and see if that stops the leak. The cost difference is negligible if you buy on a sale/clearance.
_________________________
06 Monte Carlo LT
+3.9l V6 - 185k - Defy/Motorcraft 10w30 - EcoGard Synthetic - OLM
16.5 CX-5 Touring
+2.5l I4 - 42k - SynPower 0w20 - PureOne - 8.5k/1yr

Top
#4725793 - 04/13/18 01:15 PM Re: Rear Main Seal concern??? [Re: BAJA_05]
WhiteLX Offline


Registered: 06/06/09
Posts: 3
Loc: Riverside, CA
Rear main seals are cheap, usually only a few bucks. The problem is the labor involved as the transmission must come out to change the seal. I had a bad rear main leak on the Explorer I purchased in October. I researched a lot on stop leaks and tried blue devil rear main sealer along with 10w30 Maxlife. Within 3K the leak has been greatly reduced. I used to have a large puddle under the engine. Now it's just a tiny spot, if any.

For a few small drops I'd agree, start with Maxlife and go from there.
_________________________
1992 Mustang 5.0L notchback - turbocharged
1986 Merkur XR4Ti - 2.3L turbo
1998 Ford Explorer 5.0L
2006 Toyota Corolla

Top
#4725794 - 04/13/18 01:15 PM Re: Rear Main Seal concern??? [Re: BAJA_05]
Reddy45 Online   shocked


Registered: 08/15/08
Posts: 2717
Loc: USA
Don't plan on fixing a RMS leak with chemicals. Decide if you can live with it or maybe you have the resources to fix it yourself.

I just got in the habit of keeping a drip tray under the truck when it was parked and checked the oil level often. Surprisingly even with the leak being about a half teaspoon a day the oil level never dropped noticeably in 5k OCIs.

Top
#4725812 - 04/13/18 01:32 PM Re: Rear Main Seal concern??? [Re: BAJA_05]
Chris142 Offline


Registered: 06/05/03
Posts: 16495
Loc: Deplorable in apple valley, ca
The oil pressur sender is on the rear of the engine, behind the distributer. It may be leaking and running down.
_________________________
02 Wrangler super-s 10w30
87 F250 proline 15w40
04 Tahoe super-s 10w30
Z400 Lucas 10w30
KLR250 Maxima 10w40
Can am maveric edge 5w40
57 case tractor 15w40

Top
#4725824 - 04/13/18 01:55 PM Re: Rear Main Seal concern??? [Re: BAJA_05]
rollinpete Offline


Registered: 03/20/17
Posts: 337
Loc: Westfield, Ma.
Another (senerio) is the oil red?, could be the transmission fluid.
_________________________
Pete.
97 Ford Expl. 4.0 ohv 4wd 5spddrive182k miles
Last Change;
Penn. Plat. HM 5w30
Supertech ST8 (wix), Fram CA8141

Top
#4725867 - 04/13/18 02:43 PM Re: Rear Main Seal concern??? [Re: rollinpete]
BAJA_05 Offline


Registered: 02/04/18
Posts: 273
Loc: Pennsylvania
No, its not red -- its motor oil.
_________________________
2017 VW Jetta SE TSI 1.4L Turbo
PP Euro 0W40 & FU
2008 Acura TL 3.2L QSHM 5W20 & FU
2005 Subaru Baja AWD 2.5L N/A 5spd.
PHM 5W30 & ST

Top
#4725873 - 04/13/18 02:50 PM Re: Rear Main Seal concern??? [Re: BAJA_05]
SatinSilver Offline


Registered: 01/24/08
Posts: 9728
Loc: OH
I'd leave it and use red bottle Maxlife. May want to replace the pcv valve with an oem unit as well.

I had a 99 Accord 4cyl that had a oozing rms. First Honda dealer quoted $700, second dealer quoted $500. Contacted Honda and they agreed to pay half. So cost $250 but afterwards noticed a flare from 1st to 2nd gear. They did a drain and fill on the trans which took care of that. In hindsight I would have left it alone.
_________________________
2012 Toyota Camry 72k-Idemitsu 0w20,OEM filter, RT43s.
2005 Toyota Matrix 135k miles - VWB 5w30 conv, Valvoline oil filter. Nokian eNTYRES.

Top
#4725941 - 04/13/18 04:10 PM Re: Rear Main Seal concern??? [Re: BAJA_05]
JC1 Offline


Registered: 11/29/08
Posts: 2763
Loc: Oshawa, Ontario Canada
+1 on maxlife high mileage oil. I would also add a bottle of liqui Moly motor oil saver and see if that stops it.

https://www.amazon.com/Liqui-Moly-2020-Motor-Saver/dp/B00CPL8WY8
_________________________
2015 Grand Caravan SXT Plus 5w-20 PPPP/Wix Filter
1997 Honda Civic CX 5w-30 PPPP/Mahle Filter

Top
#4726010 - 04/13/18 05:39 PM Re: Rear Main Seal concern??? [Re: BAJA_05]
zrxkawboy Offline


Registered: 11/30/04
Posts: 1748
Loc: SD
Since he has always used PYB, I'd try some PHM 10W30 for a couple of OCIs. BTW, I think you got a great deal on that truck, especially since it's a one-owner vehicle!
_________________________
"Think of all the Ford owners who will someday want an automobile." John Dodge


Top
#4726022 - 04/13/18 05:54 PM Re: Rear Main Seal concern??? [Re: BAJA_05]
Trav Offline


Registered: 11/20/06
Posts: 18207
Loc: MA, Mittelfranken.de
I wouldn't put anything in the oil or run a HM oil, just keep an eye on it. If all else fails park it nose down and when you cant throw this under it. Sounds funny but not kidding.


_________________________
ASE L1, Master. Deutsch Meisterbrief.

Top
Page 1 of 2 1 2 >