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20w50 film strength #4759261
05/16/18 09:36 PM
05/16/18 09:36 PM
Joined: May 2018
Posts: 1
Green Bay
MikeyWikey Offline OP
MikeyWikey  Offline OP
Joined: May 2018
Posts: 1
Green Bay
Which 20w50 oil has the highest film strength?
Does 20w50 have higher film strength than 0w40?
Is 0w40 Mobil 1 safe to use in my 1980 Porsche 924 which calls for 20w50?

Re: 20w50 film strength [Re: MikeyWikey] #4759263
05/16/18 09:39 PM
05/16/18 09:39 PM
Joined: Dec 2017
Posts: 368
Indy
69Torino Online content
69Torino  Online Content
Joined: Dec 2017
Posts: 368
Indy
Is it air cooled? Iím guessing so, and if it is I would definitely stick to a 50 weight oil. Especially in a car that is designed to be driven spiritedly.


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: 20w50 film strength [Re: 69Torino] #4759288
05/16/18 10:01 PM
05/16/18 10:01 PM
Joined: Sep 2010
Posts: 7,485
S California
OneEyeJack Offline
OneEyeJack  Offline
Joined: Sep 2010
Posts: 7,485
S California
Originally Posted By: 69Torino
Is it air cooled? Iím guessing so, and if it is I would definitely stick to a 50 weight oil. Especially in a car that is designed to be driven spiritedly.


A 924 is a water-cooled VW/Audi engine with a Porsche badge. Switching from a 50w to a 40w should be no problem.

Re: 20w50 film strength [Re: MikeyWikey] #4759289
05/16/18 10:02 PM
05/16/18 10:02 PM
Joined: Apr 2018
Posts: 426
Somewhere in time
Imp4 Offline
Imp4  Offline
Joined: Apr 2018
Posts: 426
Somewhere in time
You could go ask 540Rat.... hide


2001 Mitsubishi Galant 2.4 - 157k+
Grandma's creampuff...
Re: 20w50 film strength [Re: MikeyWikey] #4759306
05/16/18 10:20 PM
05/16/18 10:20 PM
Joined: Dec 2006
Posts: 18,847
Dallas,Tx USA
aquariuscsm Offline
aquariuscsm  Offline
Joined: Dec 2006
Posts: 18,847
Dallas,Tx USA
Maybe RP XPR 20W50.


1996 Nissan 300ZX 5-speed,Arctic Pearl(#175 of 300)
Quaker State Ultimate Durability 10W30
2012 Honda Accord Coupe EX-L 2.4,auto,San Marino Red
Quaker State Ultimate Durability 5W20

Re: 20w50 film strength [Re: MikeyWikey] #4759308
05/16/18 10:22 PM
05/16/18 10:22 PM
Joined: Nov 2016
Posts: 338
sonoma
burla Online content
burla  Online Content
Joined: Nov 2016
Posts: 338
sonoma
Not 0w40, many oil manu's use that weight to be closer to a 5w30 then anything. I'm not saying it isn't safe to use in your car, just a comment on film strength.

Re: 20w50 film strength [Re: MikeyWikey] #4759315
05/16/18 10:36 PM
05/16/18 10:36 PM
Joined: Mar 2017
Posts: 5,788
...
PimTac Offline
PimTac  Offline
Joined: Mar 2017
Posts: 5,788
...
Merky would love a thread like this.


2017 Mazda CX-5 GT.

Valvoline Modern Engine 0w20
Mobil 1 EP 108A
Re: 20w50 film strength [Re: MikeyWikey] #4759319
05/16/18 10:45 PM
05/16/18 10:45 PM
Joined: Dec 2011
Posts: 4,910
North Carolina
rooflessVW Offline
rooflessVW  Offline
Joined: Dec 2011
Posts: 4,910
North Carolina
I'd use M1 5W-50 or 15W-50 if it were mine and I put it through it's paces. Actually, I'd probably just use a Conventional HDEO like Delo or Delvac 15W-40.


"Zed's dead baby, Zed's dead."
Re: 20w50 film strength [Re: MikeyWikey] #4759332
05/16/18 11:00 PM
05/16/18 11:00 PM
Joined: Dec 2017
Posts: 2,529
SE British Columbia, Canada
Snagglefoot Online content
Snagglefoot  Online Content
Joined: Dec 2017
Posts: 2,529
SE British Columbia, Canada
Originally Posted By: MikeyWikey
Which 20w50 oil has the highest film strength?
Does 20w50 have higher film strength than 0w40?
Is 0w40 Mobil 1 safe to use in my 1980 Porsche 924 which calls for 20w50?


Here you go.



If you want the job done right......do it yourself.
Re: 20w50 film strength [Re: MikeyWikey] #4759337
05/16/18 11:04 PM
05/16/18 11:04 PM
Joined: Sep 2015
Posts: 5,955
Kalifornia Kollective
BrocLuno Offline
BrocLuno  Offline
Joined: Sep 2015
Posts: 5,955
Kalifornia Kollective
Yup, Silver Bottle VR-1 for street driven engines. It is the good stuff when it comes to these heavier grades. Well known and proven at tracks all across the country every weekend smile


Formerly in marine engineering. In an earlier life I owned my own petroleum tank truck, and hauled for the majors and independent's.
Re: 20w50 film strength [Re: MikeyWikey] #4759348
05/16/18 11:25 PM
05/16/18 11:25 PM
Joined: Apr 2017
Posts: 1,200
San Rafael, CA
dogememe Online content
dogememe  Online Content
Joined: Apr 2017
Posts: 1,200
San Rafael, CA
I've never heard a bad thing about VR-1 and we sell a TON of it at work at the parts store. If you wanted a synthetic you could use Royal Purple HPS, it's not that much more. I am no expert in your type of car but I would stick with a 20w-50.

https://www.youtube.com/watch?v=xmBdX4BhtME


2010 Ford Escape 2.5 ~90K Miles - Royal Purple 5W-30, Wix Filter, 7K OCI.
1995 Chevy Silverado 5.7 ~ 267K Miles - Unknown Oil, Just Purchased, 3K OCI.
Re: 20w50 film strength [Re: MikeyWikey] #4759583
05/17/18 08:40 AM
05/17/18 08:40 AM
Joined: Oct 2015
Posts: 2,698
Balearic Islands , Spain
FordCapriDriver Offline
FordCapriDriver  Offline
Joined: Oct 2015
Posts: 2,698
Balearic Islands , Spain
Valvoline VR1 20W-50 is great, that Porsche will be more than happy on it!


1975 Ford Capri II Ghia 3000 V6, - Shell Helix HX3 20W-50 w/ 20% Rimula R4X 15W-40 HDEO.

1988 Ford Escort Mk4 Xr3i Cabrio, - Shell Rimula R4X 15W-40, w/ 30% Helix 3 20W-50.

Finnish expat in Spain.
Re: 20w50 film strength [Re: MikeyWikey] #4759711
05/17/18 10:29 AM
05/17/18 10:29 AM
Joined: Apr 2016
Posts: 1,567
Oregon
1JZ_E46 Offline
1JZ_E46  Offline
Joined: Apr 2016
Posts: 1,567
Oregon
Mobil 1 15W-50 would be perfect for this application. Itís a very robust oil. Itís essentially a synthetic 20W-50. Same thickness, better cold properties.


2007 X5 4.8i: M1 HM 10W-30
2016 Countryman S: EDGE 0W-30
Re: 20w50 film strength [Re: MikeyWikey] #4760062
05/17/18 03:24 PM
05/17/18 03:24 PM
Joined: May 2010
Posts: 1,094
Ocala, Florida
racin4ds Offline
racin4ds  Offline
Joined: May 2010
Posts: 1,094
Ocala, Florida
Ignore the thin oil guys on this one! Run the VR1 20W50!! That old motor was designed for it and needs the additives that are exempt from todays junk PCMO's


Just say NO to thin oils and M1!
05 F350 Powerstroke
05 Hyundai Tucson
08 Legacy GT
Re: 20w50 film strength [Re: MikeyWikey] #4760115
05/17/18 04:26 PM
05/17/18 04:26 PM
Joined: Oct 2012
Posts: 1,224
Rabbit Creek, Alaska
jayg Offline
jayg  Offline
Joined: Oct 2012
Posts: 1,224
Rabbit Creek, Alaska
Why in the world are some of you recommending a 20w50 racing oil for a 110 hp VW 4 cylinder?

Any good conventional oil from 40 to 50 wt would be perfect in this. I'm guessing most here don't know what a 924 is.

OP if you already have the 0w40 us it. If you don't , buy a cheap conventional 40-50 wt and run it.


2017 Ram 1500 Ecodiesel- CP Triton ECT 5w40
2015 Prius C Napa 0w20
1973 240Z 10w30 VWC from '73
1973 Triumph Bonneville 750 M1 5w50
1967 BSA 441 Victor Special M1 5w50




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