Go Back   The Ford Barn > General Discussion > Model A (1928-31)

Sponsored Links (Register now to hide all advertisements)

Reply
 
Thread Tools Display Modes
Old 07-20-2019, 12:45 PM   #1
fastroadster
Senior Member
 
Join Date: Oct 2014
Location: Santa Cruz Ca.
Posts: 149
Default Synthetic Oil

How does everyone feel about running synthetic oil in their A's. I have been running 30wt. Diesel oil but now see people are talking about running synthetics. I don't think they come in anything but 5-20 wt.? What do you guys think?
fastroadster is offline   Reply With Quote
Old 07-20-2019, 12:54 PM   #2
JOHN CT
Senior Member
 
JOHN CT's Avatar
 
Join Date: May 2010
Location: In my garage
Posts: 411
Default Re: Synthetic Oil

Iíve been using Walmart 10/30 Synthetic oil for 2 years now. I did have a lifter tap now itís gone. I donít know if it fixed it, but the A seams happier .
__________________
31 Tudor
66 Bonneville
57 Chevy pickup 27 T roadster pick up
JOHN CT is offline   Reply With Quote
Sponsored Links (Register now to hide all advertisements)
Old 07-20-2019, 01:20 PM   #3
rfitzpatrick
Senior Member
 
Join Date: May 2018
Location: Coral Springs, Florida
Posts: 210
Default Re: Synthetic Oil

Mobil One 10W-40 High Millage - Synthetic in all my cars including the '31 Pickup
rfitzpatrick is offline   Reply With Quote
Old 07-20-2019, 01:24 PM   #4
Werner
Senior Member
 
Werner's Avatar
 
Join Date: Jan 2019
Location: Germany, near Aachen
Posts: 506
Default Re: Synthetic Oil

I use in my new A a 20W/40 synthetic oil at 1500 mls. In my 47-er Traction I drive now 10 years a 7.5W/40 synthetic at 60.000 mls. Low ash, clean piston"heads" and spark plugs.
__________________
Beste Gruesse aus Deutschland,
Werner


Ford Model A Roadster, 1928
Citroen 11 CV, 1947
Honda CB 450 K 1, 1968
Hercules Wankel Rotary Engine, 1976 (Canadian version)
Werner is offline   Reply With Quote
Old 07-20-2019, 01:25 PM   #5
ronn
Senior Member
 
Join Date: Feb 2011
Posts: 3,620
Default Re: Synthetic Oil

I run synthetic in everything. even the lawn tractor.


price at this point is almost identical to reg oil and it lasts 3x as long.
ronn is offline   Reply With Quote
Old 07-20-2019, 01:30 PM   #6
Werner
Senior Member
 
Werner's Avatar
 
Join Date: Jan 2019
Location: Germany, near Aachen
Posts: 506
Default Re: Synthetic Oil

Ronn, you wrote <... and it lasts 3x as long. ...>NO! You must change every oil in short intervalls to take out the dirty dust, because there is no filter!
__________________
Beste Gruesse aus Deutschland,
Werner


Ford Model A Roadster, 1928
Citroen 11 CV, 1947
Honda CB 450 K 1, 1968
Hercules Wankel Rotary Engine, 1976 (Canadian version)
Werner is offline   Reply With Quote
Old 07-20-2019, 02:41 PM   #7
rotorwrench
Senior Member
 
rotorwrench's Avatar
 
Join Date: Jun 2010
Location: San Antonio, Texas
Posts: 10,306
Default Re: Synthetic Oil

The stuff is too expensive for me. I'll keep using the stuff that was good enough for Pop & Grandpop.
rotorwrench is offline   Reply With Quote
Old 07-20-2019, 02:51 PM   #8
WHN
Senior Member
 
Join Date: Mar 2017
Posts: 1,071
Default Re: Synthetic Oil

I have read that when used with older engines synthetic oil can damage gaskets and seals causing the potential for leaks.

I do use synthetic in all our modern cars. Really great stuff. Enjoy.
WHN is offline   Reply With Quote
Old 07-20-2019, 02:57 PM   #9
Werner
Senior Member
 
Werner's Avatar
 
Join Date: Jan 2019
Location: Germany, near Aachen
Posts: 506
Default Re: Synthetic Oil

Rotorwrench, I see you here in the forum as a very versatile professional good technical man. See synthetic oils only so, that they burn with much less residue. The engine and combastion chambers stays cleaner.

This is the main reason for me why I use synthetic oil.
__________________
Beste Gruesse aus Deutschland,
Werner


Ford Model A Roadster, 1928
Citroen 11 CV, 1947
Honda CB 450 K 1, 1968
Hercules Wankel Rotary Engine, 1976 (Canadian version)
Werner is offline   Reply With Quote
Old 07-20-2019, 03:07 PM   #10
Werner
Senior Member
 
Werner's Avatar
 
Join Date: Jan 2019
Location: Germany, near Aachen
Posts: 506
Default Re: Synthetic Oil

WHN, this only applies to sealing material (shaft sealing ring) before the 1970s. Thereafter, material (eg. 'Viton'), which is compatible with synthetic oils, was used.
__________________
Beste Gruesse aus Deutschland,
Werner


Ford Model A Roadster, 1928
Citroen 11 CV, 1947
Honda CB 450 K 1, 1968
Hercules Wankel Rotary Engine, 1976 (Canadian version)
Werner is offline   Reply With Quote
Old 07-20-2019, 03:42 PM   #11
monto
Senior Member
 
Join Date: Apr 2015
Location: NH
Posts: 170
Default Re: Synthetic Oil

SAE 30 Non Detergent
__________________
'30 Coupe
monto is offline   Reply With Quote
Old 07-20-2019, 05:13 PM   #12
woofa.express
Senior Member
 
woofa.express's Avatar
 
Join Date: Jan 2018
Location: Tocumwal, NSW, Australia
Posts: 1,014
Default Re: Synthetic Oil

Synthetic oil ?

I seem to have a different opinion to other users. A buddy spoke about the positive benefits of synthetic oil in his aeroplane so I tried it in mine. The oil remained clean and after quite a number of hours I realised it wasnít scavenging the carbon. I returned to the usual detergent oil and it got very black very quickly. I continued to change frequently until normality returned.
It is for this reason I never used it again. Has the composition changed? Or am I being obstinate? I have an open mind to logical criticism and positive suggestion.
Attached Images
File Type: jpg unhappy aeroplane.JPG (38.7 KB, 8 views)
__________________
I know many things,
But I don't know everything,
Sometimes I forget things.

And there are times when I have a long memory.
woofa.express is offline   Reply With Quote
Old 07-20-2019, 09:42 PM   #13
mhsprecher
Senior Member
 
mhsprecher's Avatar
 
Join Date: Aug 2012
Location: Takoma Park, MD
Posts: 2,219
Default Re: Synthetic Oil

I use Mobil 1 Synthetic in my Model A's and my 39 Ford V8. I have been running 10w-30, but I want to change to 10W-40 as Ford recommended 40w in the summer. Maybe it doesn't make that much difference? FWIW, Ron Ehrenhofer, who is the technical guru for the Model A News for MARC, uses synthetic in his cars.
mhsprecher is offline   Reply With Quote
Old 07-20-2019, 10:04 PM   #14
M2M
Senior Member
 
M2M's Avatar
 
Join Date: Jul 2012
Location: AUSTRALIA/USA/EU/RUSSIA
Posts: 821
Default Re: Synthetic Oil

No need for Synthetic Oil in an A but if you must I'd go for Mobil 1 15w-50 which is great for both cool and hot weather and this oil has a very high ZDDP content if that also matters to you. It's sold a Walmart for about $23 a gallon I think.
__________________

M2M is offline   Reply With Quote
Old 07-20-2019, 11:10 PM   #15
Mike V. Florida
Senior Member
 
Mike V. Florida's Avatar
 
Join Date: May 2010
Location: South Florida
Posts: 14,002
Send a message via AIM to Mike V. Florida
Default Re: Synthetic Oil

Use what ever will give you piece of mind when you drive.
__________________
What's right about America is that although we have a mess of problems, we have great capacity - intellect and resources - to do some thing about them. - Henry Ford II
Mike V. Florida is offline   Reply With Quote
Old 07-21-2019, 12:48 AM   #16
updraught
Senior Member
 
updraught's Avatar
 
Join Date: Feb 2015
Location: Australia
Posts: 1,187
Default Re: Synthetic Oil

It helps to keep the turbo cool.
updraught is offline   Reply With Quote
Old 07-21-2019, 06:33 AM   #17
ronn
Senior Member
 
Join Date: Feb 2011
Posts: 3,620
Default Re: Synthetic Oil

as I said, I run synthetic in everything and it lasts 3x as long as reg motor oil. I chg my oil every 2k miles


buying it for 3.15 a qt at walmart. for the guys that say they cant afford that, well maybe they cant afford an A.


"ignore the noise around you"
ronn is offline   Reply With Quote
Old 07-21-2019, 09:17 AM   #18
rotorwrench
Senior Member
 
rotorwrench's Avatar
 
Join Date: Jun 2010
Location: San Antonio, Texas
Posts: 10,306
Default Re: Synthetic Oil

Quote:
Originally Posted by woofa.express View Post
Synthetic oil ?

I seem to have a different opinion to other users. A buddy spoke about the positive benefits of synthetic oil in his aeroplane so I tried it in mine. The oil remained clean and after quite a number of hours I realised it wasnít scavenging the carbon. I returned to the usual detergent oil and it got very black very quickly. I continued to change frequently until normality returned.
It is for this reason I never used it again. Has the composition changed? Or am I being obstinate? I have an open mind to logical criticism and positive suggestion.
There are distinct differences between air cooled aircraft engines and any other type. Most have large bores compared to automotive engines to give them the displacement that will develop horsepower in the range needed. Many are still carbureted and the rest are mechanically fuel injected. There are few with channel chrome plated cylinders now days but there may be a few still running. They run in the neighborhood of 215 degrees F and more depending on conditions. These are extremes for piston engines. It takes a strong detergent quality to scavenge the combustion bi-products that get past the rings. It also takes a minimum of SAE 50 viscosity index to do a decent job of lubricating. Mineral based ashless dispersant scavenging additive can easily be blended in and still hold the viscosity pretty well at 100 degrees C since there is a wide band of viscosity index available in mineral based lubricant stocks. Ester based synthetics are a different story. The are strictly a low viscosity lubricant that has to have viscosity building polymers blended in to give it the SAE 50 viscosity. These polymers break down quickly at high temperatures. This is why many of the synthetic aviation motor oils are semi-synthetic which is a blend of mineral and synthetic based stocks. Ashless Dispersants work better in mineral based oil than they do in synthetic so this is another reason for the mix. Aircraft that fly up in the colder atmosphere can get away with using semi-synthetics but helicopters and smaller aircraft usually stay in the lower altitude ranges. Take off for airplanes is usually full power until a cruise altitude is reached and helicopters run at high power settings anytime they are hovering or gaining altitude so they get wrung out pretty well in normal operations.

I learned a long time ago not to use synthetics in the helicopters. They would never last on the stuff. Aeroshell W100 or W100+ are the most common used. The plus has TCP as an additive for Lycoming engine cam follower well being but can not be used in engines with integral clutches or overrunning clutches since they might slip with that oil. Straight mineral is only used for break in.

Automotive engines have no real comparison to aircraft engines other than they are a reciprocating piston design.
rotorwrench is offline   Reply With Quote
Old 07-21-2019, 11:10 AM   #19
Jim Brierley
Senior Member
 
Join Date: Jun 2010
Location: Temecula, CA
Posts: 2,938
Default Re: Synthetic Oil

Synthetic is too expensive for me! I run 20-50 Pep Bros. or NAPA. I've run 15-40 in my diesels since '82, one ran 262,00 before I sold it, another 206,000 never any trouble. I run my '13 power stroke 7500 miles between changes, as per factory recommendation. Zinc is not important in A's, wasn't when new, isn't now because of the steel, not cast iron, cam and low valve spring pressure. Detergent is important, never run without it. Additives are not needed either, another waste of money.
Jim Brierley is offline   Reply With Quote
Old 07-21-2019, 12:37 PM   #20
Chris Haynes
Senior Member
 
Chris Haynes's Avatar
 
Join Date: May 2010
Location: North Hills, CA and Pine Grove, CA
Posts: 2,360
Default Re: Synthetic Oil

Quote:
Originally Posted by Werner View Post
Ronn, you wrote <... and it lasts 3x as long. ...>NO! You must change every oil in short intervalls to take out the dirty dust, because there is no filter!
A filter is easily added.
__________________
1921 Runabout
1930 Tudor
Early 1930 AA
Speed costs money. How fast do you want to go?
Chris Haynes is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Sponsored Links (Register now to hide all advertisements)


All times are GMT -5. The time now is 05:57 PM.