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What oil for a flathead Plymouth? #4668134
02/16/18 07:49 PM
02/16/18 07:49 PM
Joined: Jun 2003
Posts: 17,357
Deplorable in apple valley, ca
Chris142 Offline OP
Chris142  Offline OP
Joined: Jun 2003
Posts: 17,357
Deplorable in apple valley, ca
Customer of mine bought a huge project. It's a WW2 Dodge Power wagon. It needs lots of help. Anyway I have ran the numbers on the engine and its a 230 from a 1956 Plymouth. It does not have any type of oil filter on it.

In my past we ran ND30 in engines that don't have an oil filter. I am in California and I can't get ND30 here.

Thoughts?


02 Wrangler durablend 10w40
87 F250 traveler 15w40
04 Tahoe super-s 10w30
Z400 castrol T 10w40
Can am maveric edge 5w40
57 case tractor 15w40
Re: What oil for a flathead Plymouth? [Re: Chris142] #4668137
02/16/18 07:52 PM
02/16/18 07:52 PM
Joined: May 2010
Posts: 9,054
North Carolina
spasm3 Offline
spasm3  Offline
Joined: May 2010
Posts: 9,054
North Carolina
Rotella T1 30w or T3 10w 30


13 elantra 70k 5w30 QSUD
03 chevy avalanche79k synpwr 10w30
01 saturnsc1 185k synpwr rebuilt
17 mazda cx-5 5600 miles m1 0w30
Re: What oil for a flathead Plymouth? [Re: Chris142] #4668145
02/16/18 07:56 PM
02/16/18 07:56 PM
Joined: Oct 2012
Posts: 4,622
Taiwan
Ducked Offline
Ducked  Offline
Joined: Oct 2012
Posts: 4,622
Taiwan
Why ND?

Re: What oil for a flathead Plymouth? [Re: Ducked] #4668148
02/16/18 07:57 PM
02/16/18 07:57 PM
Joined: Jun 2003
Posts: 17,357
Deplorable in apple valley, ca
Chris142 Offline OP
Chris142  Offline OP
Joined: Jun 2003
Posts: 17,357
Deplorable in apple valley, ca
Originally Posted By: Ducked
Why ND?
Some say that detergents will pick up the scrap and run it through the bearings.


02 Wrangler durablend 10w40
87 F250 traveler 15w40
04 Tahoe super-s 10w30
Z400 castrol T 10w40
Can am maveric edge 5w40
57 case tractor 15w40
Re: What oil for a flathead Plymouth? [Re: Chris142] #4668153
02/16/18 07:59 PM
02/16/18 07:59 PM
Joined: Jun 2011
Posts: 1,755
Crawfordville FL
SilverFusion2010 Offline
SilverFusion2010  Offline
Joined: Jun 2011
Posts: 1,755
Crawfordville FL
I know of one ND 30 and it is harbor freight compressor oil.

I would go with any SN rated 30 I can find by the jug. Most OPE doesn’t have oil filtration and the detergents in modern oil don’t bother them.

I wouldn’t go over 2k oci though

Last edited by SilverFusion2010; 02/16/18 08:00 PM.

2010 Ford Fusion SE 3.0L V6, 178k miles M1 HM 10w-30
Re: What oil for a flathead Plymouth? [Re: Chris142] #4668155
02/16/18 08:00 PM
02/16/18 08:00 PM
Joined: Dec 2017
Posts: 348
Indy
69Torino Online content
69Torino  Online Content
Joined: Dec 2017
Posts: 348
Indy
Multi weight oil won't hurt it. I vote a stout 10W-30 such as Rotella or Valvoline VR-1 or any 15W-40 HD oil. My personal opinion is a 10W-30 will be beneficial with cranking speed when cold, (under say 72F) especially if it's still on 6 volts.


1969 Ford Torino GT 390 Auto
2003 Mercury Marauder
1992 Mercury Capri Convertible
2005 Ford Freestyle
2008 Hyundai Santa Fe
2015 Kia Optima
1947 Ford 2N
1978 Honda XL75
Plus Other Stuff...
Re: What oil for a flathead Plymouth? [Re: Chris142] #4668157
02/16/18 08:02 PM
02/16/18 08:02 PM
Joined: Jun 2012
Posts: 678
Reno, NV
redbone3 Online content
redbone3  Online Content
Joined: Jun 2012
Posts: 678
Reno, NV
Clean out the oil pan, run either 10-30 or 20-50. If that engine lived on non detergent oil back in the day, and you put detergent oil in it there is a large possibility of the oil screen being blocked by debris.


2014 Passat Wolfsburg, 1995 Miata.
Re: What oil for a flathead Plymouth? [Re: redbone3] #4668159
02/16/18 08:04 PM
02/16/18 08:04 PM
Joined: Dec 2017
Posts: 348
Indy
69Torino Online content
69Torino  Online Content
Joined: Dec 2017
Posts: 348
Indy
Originally Posted By: redbone3
Clean out the oil pan, run either 10-30 or 20-50. If that engine lived on non detergent oil back in the day, and you put detergent oil in it there is a large possibility of the oil screen being blocked by debris.


Forgot to mention... put an oil pressure gauge on it. Either a diagnostic one or a permanent one. Just so you know it's there and steady.


1969 Ford Torino GT 390 Auto
2003 Mercury Marauder
1992 Mercury Capri Convertible
2005 Ford Freestyle
2008 Hyundai Santa Fe
2015 Kia Optima
1947 Ford 2N
1978 Honda XL75
Plus Other Stuff...
Re: What oil for a flathead Plymouth? [Re: Chris142] #4668168
02/16/18 08:10 PM
02/16/18 08:10 PM
Joined: Mar 2017
Posts: 5,453
Soviet State of Washington
PimTac Online content
PimTac  Online Content
Joined: Mar 2017
Posts: 5,453
Soviet State of Washington
You are going to have to find a source and smuggle it in thanks to California laws.


2017 Mazda CX-5 Grand Touring

Valvoline Advanced Synthetic 0w20
Mobil 1 M108A EP filter

Re: What oil for a flathead Plymouth? [Re: Chris142] #4668196
02/16/18 08:25 PM
02/16/18 08:25 PM
Joined: Dec 2013
Posts: 2,136
Alabama, United States
Red91 Offline
Red91  Offline
Joined: Dec 2013
Posts: 2,136
Alabama, United States
Plain ol 30. Nothing special. Don't you use a lot of Proline, from Pep Boys? Proline 30 for the win.


'89 Chevy 1500
Supertech 20/50
'15 Chevy Cruze
AcDelco syn dexos 5/30
Re: What oil for a flathead Plymouth? [Re: Red91] #4668202
02/16/18 08:30 PM
02/16/18 08:30 PM
Joined: Jun 2003
Posts: 17,357
Deplorable in apple valley, ca
Chris142 Offline OP
Chris142  Offline OP
Joined: Jun 2003
Posts: 17,357
Deplorable in apple valley, ca
Originally Posted By: Red91
Plain ol 30. Nothing special. Don't you use a lot of Proline, from Pep Boys? Proline 30 for the win.
ya I actually bought some sae30 for it but second guessed myself.. It has a mechanical gauge and it shows 40 psi. The bottom of the oil pan was a disaster. I have it soaking in solvent.


02 Wrangler durablend 10w40
87 F250 traveler 15w40
04 Tahoe super-s 10w30
Z400 castrol T 10w40
Can am maveric edge 5w40
57 case tractor 15w40
Re: What oil for a flathead Plymouth? [Re: Chris142] #4668203
02/16/18 08:31 PM
02/16/18 08:31 PM
Joined: Sep 2015
Posts: 5,858
Kalifornia Kollective
BrocLuno Offline
BrocLuno  Offline
Joined: Sep 2015
Posts: 5,858
Kalifornia Kollective
So what's the customer budget? Are we only trying to get it running? Or does the customer want it to run right ...

You could just put SAE 30 HD from Tractor Supply in there.

If it were mine or I was going to keep it running for somebody, I'd add a canister filter (they were optional on some early Chrysler products) and then run Delo 400 15W-30 SD (severe duty). The filter can be found on ebay or maybe just ordered through your local Napa store...

The engine does not need that oil per se, but the add pack is stout, and it's a very good oil with a narrow viscosity spread.

So have you had the tappet covers off? That is where you will see grunge if it's there.

I'll bet it needs a valve adjustment if it's been running unleaded... The exhaust valves may have receded some, tightening them up and loosing compression ... For the adjustment, I'd run them on the loose side of spec.

If the tappet boxes are pretty clean, it'll run multi-grade high detergent oil just fine smile

Any HDEO 15W-40 would be very good smile


Last edited by BrocLuno; 02/16/18 08:33 PM.

Formerly in marine engineering. In an earlier life I owned my own petroleum tank truck, and hauled for the majors and independent's.
Re: What oil for a flathead Plymouth? [Re: Chris142] #4668223
02/16/18 08:52 PM
02/16/18 08:52 PM
Joined: Jul 2013
Posts: 1,674
Ottumwa, Iowa
jhellwig Online content
jhellwig  Online Content
Joined: Jul 2013
Posts: 1,674
Ottumwa, Iowa
Just put a normal oil in it.


Sparks fly from my fingers.

1995 Chevy K2500 Suburban lt 5.7
2014 Toyota Sienna
1983 Chevy K5 350
Re: What oil for a flathead Plymouth? [Re: Chris142] #4668267
02/16/18 09:36 PM
02/16/18 09:36 PM
Joined: Dec 2003
Posts: 9,801
Florida, Cape Coral
Eddie Offline
Eddie  Offline
Joined: Dec 2003
Posts: 9,801
Florida, Cape Coral
I vote for T5 10w30. I ran my flat heads of 1950s on 30 weight back in the day but, I'd go 10w30 today. ED


CX5 Touring 2.5L :-)
Re: What oil for a flathead Plymouth? [Re: Chris142] #4668293
02/16/18 10:04 PM
02/16/18 10:04 PM
Joined: Dec 2017
Posts: 2,340
SE British Columbia, Canada
Snagglefoot Offline
Snagglefoot  Offline
Joined: Dec 2017
Posts: 2,340
SE British Columbia, Canada
Ask for non detergent 30 weight oil at your auto parts store. Most have it.

Last edited by Snagglefoot; 02/16/18 10:04 PM.

If you want the job done right......do it yourself.
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