The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1967 - 1972 Chevrolet & GMC Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 02-26-2009, 07:37 AM   #1
cedorris
1972 Chevy Cheyenne Super
 
cedorris's Avatar
 
Join Date: Feb 2009
Location: Oklahoma City, OK
Posts: 302
Recommended Oil for a factory 350?

I know people can argue oil all day long, but what is your recommended oil for a 1972 factory 350?

Synthetic, blend, or conventional?
Brand?
Viscosity?
High mileage, truck, or other specialty?

I am currently running SuperTech (Walmart's house brand) High Mileage Conventional 10w-30 plus an STP Oil Treatment.

I have considered switching to a 10w-40 conventional in a few months for the summer.

Your thoughts?

Last edited by cedorris; 02-26-2009 at 07:38 AM.
cedorris is offline   Reply With Quote
Old 02-26-2009, 07:48 AM   #2
jgreene0717
Jason
 
jgreene0717's Avatar
 
Join Date: Sep 2008
Location: Wetumpka, AL
Posts: 152
Re: Recommended Oil for a factory 350?

I would say it really depends on the mileage of your motor. I run 10w40
conventional Castrol GTX in my GM
Goodwrench crate 350. But have ran
20w50 in higher mileage engines.
jgreene0717 is offline   Reply With Quote
Old 02-26-2009, 07:51 AM   #3
cedorris
1972 Chevy Cheyenne Super
 
cedorris's Avatar
 
Join Date: Feb 2009
Location: Oklahoma City, OK
Posts: 302
Re: Recommended Oil for a factory 350?

Quote:
Originally Posted by jgreene0717 View Post
I would say it really depends on the mileage of your motor.
I have 143,000 original miles on my motor.
cedorris is offline   Reply With Quote
Old 02-26-2009, 08:07 AM   #4
jbristo67
resident oilfield trash
 
jbristo67's Avatar
 
Join Date: Jan 2009
Location: Lubbock TX
Posts: 1,366
Re: Recommended Oil for a factory 350?

Rotella
__________________
1967 SWB C10 396/400 factory air
factory tach (sadly had to send to a new home)

1986 Honda 70 Fourtrax

1991 Chevrolet K5 blazer

2000 Mastercraft Pro Star 209

2002 Chevrolet Tahoe

2011 Nissan Armada

jbristo67 is offline   Reply With Quote
Old 02-26-2009, 08:10 AM   #5
jgreene0717
Jason
 
jgreene0717's Avatar
 
Join Date: Sep 2008
Location: Wetumpka, AL
Posts: 152
Re: Recommended Oil for a factory 350?

If your oil pressure is ok using the
10w30 and stp oil treatment then I would probably just stick with that setup. My preference is conventional oil but I change my oil every couple of thousand miles. The sythetic stuff is great but I think the only benefit is longer oil change intervals. I am sure
some people think differently but that is my opinion. I have always used Castrol brand oil in any and everything including motor cycles and have always had good luck. I am not real sure about the specialty oils because I have never used any.
jgreene0717 is offline   Reply With Quote
Old 02-26-2009, 11:22 AM   #6
MyMach5
Registered User
 
MyMach5's Avatar
 
Join Date: Jan 2009
Location: Portland, OR
Posts: 44
Re: Recommended Oil for a factory 350?

I use 10w40 GTX in my 350 as well. I think it works great and I change it about every 2k-3k.

Synthetics are great oils (I use 0w40 Mobil 1 in my track car) but you have to be careful with our older engines. The oil molecule in a synthetic is smaller than a conventional. If you have small oil leaks now they will only get worse with the Synthetic. You may also start leaking oil with the Synthetic where you didn't have leaks before.
MyMach5 is offline   Reply With Quote
Old 02-26-2009, 12:21 PM   #7
Gumby'sC20
Registered User
 
Gumby'sC20's Avatar
 
Join Date: Jan 2009
Location: Binghamton, N.Y.
Posts: 116
Re: Recommended Oil for a factory 350?

I run Mobil1 Clean 5000 10w30. Seems to run real nice, and it's cheap. $11 for a 5qt. at WalMart.

I also use Gunk's Engine Flush every other oil change.
Gumby'sC20 is offline   Reply With Quote
Old 02-26-2009, 01:59 PM   #8
DANTIP
Registered User
 
DANTIP's Avatar
 
Join Date: Sep 2001
Location: Fort Wayne, Indiana, USA
Posts: 1,394
Re: Recommended Oil for a factory 350?

As discussed in the attached link, the additives are more important than brand and or viscosity. Below is a link to a previous discussion on modern oils available to protect flat tappet engines. Good Luck!

http://67-72chevytrucks.com/vboard/s....php?p=2911213
DANTIP is offline   Reply With Quote
Old 02-26-2009, 04:09 PM   #9
'72customdeluxe
Registered User
 
Join Date: Jan 2008
Location: Tejas
Posts: 693
Re: Recommended Oil for a factory 350?

Is a stock 350 5 or 6 quarts
__________________
'72 cheyenne super step, '05 long bed gmc
'72customdeluxe is offline   Reply With Quote
Old 02-26-2009, 04:25 PM   #10
jgreene0717
Jason
 
jgreene0717's Avatar
 
Join Date: Sep 2008
Location: Wetumpka, AL
Posts: 152
Re: Recommended Oil for a factory 350?

My stock replacement GM Goodwrench crate 350 holds five quarts. Four quart oil pan and oil filter holds one quart.
jgreene0717 is offline   Reply With Quote
Old 02-26-2009, 04:30 PM   #11
Sinister
Between Trucks...
 
Sinister's Avatar
 
Join Date: Mar 2002
Location: Los Angeles, CA.
Posts: 3,816
Re: Recommended Oil for a factory 350?

I'm actually changing my oil tomorrow morning. 10w30 and a bottle of Compcams engine break in oil additive. I've used EOS in the past, seems to work, cam ain't flat yet. LOL
__________________
Beat it to fit,
Paint it to match...
Sinister is offline   Reply With Quote
Old 02-26-2009, 05:44 PM   #12
thirdstreettito
Resident of Here
 
thirdstreettito's Avatar
 
Join Date: May 2008
Location: Wesley Chapel, FL, USA
Posts: 7,692
Re: Recommended Oil for a factory 350?

Schaefer.
__________________
~Bradley~
2013 Mini Cooper S Hardtop 1.6L Turbo/6-speed Chili Red
Miss having a truck
thirdstreettito is offline   Reply With Quote
Old 02-27-2009, 03:48 AM   #13
67shortie
Green club
 
67shortie's Avatar
 
Join Date: May 2002
Location: Central CA
Posts: 1,060
Re: Recommended Oil for a factory 350?

I use DELO 400 15W-40 in my flat tappet engines, this oil has about 1100-1300ppm of zddp in the mix to help make the cams live.
__________________
71 short/fleet ECE 4/6 drop, LQ4/700r4/3.42 gears
70 SS396 Chevelle 427/200-4R/3.73posi
61 Lincoln Continental, black on black

Son you are going to drive me to drinkin if you don't stop drivin that hot rod lincoln
67shortie is offline   Reply With Quote
Old 02-27-2009, 06:04 AM   #14
truckdude239
Senior Member
 
truckdude239's Avatar
 
Join Date: Sep 2005
Location: Lewisville, Nc
Posts: 8,971
Re: Recommended Oil for a factory 350?

i run castrol gtx 10w30 or 10w40
__________________
David fuller
Ase Certified Mechanic
Click here to help support our board!!

Nc Fall gathering of the Goofs Truck Meet

1971 Chevy c-10 under going a 4.8l LSx swap

Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=421305

1987 Ford F-150 302 v8 auto -
1999 Honda accord 2 door with 238k miles my daily driver
2002 Honda Accord 4 door With 244k (sisters car)
1998 Honda Accord 4 door with 301k (brothers car)

General manager for Marco's Carwash & lube
truckdude239 is offline   Reply With Quote
Old 02-28-2009, 12:22 AM   #15
spinning wheels
Registered User
 
spinning wheels's Avatar
 
Join Date: Sep 2001
Location: Hacienda Heights, California USA
Posts: 474
Re: Recommended Oil for a factory 350?

From what I have been told, by a diesel fool, the motor oils intended for diesels, Rotella, Delo. ect.. Have a higher amount of anti sludge detergents. This is due to the by-product from the diesel fuels. From what he told me, they will clean the inside of a gasoline engine just fine, but chances are that sludge can find it was into the oil pump's inlet and start to plug it up.

Now, I am not sure if has his facts correct. But, I am not willing to test my motors to prove him right or wrong.

In my old '72 truck, I am running 10w-40. How many miles are on the motor is a mystery to me.

In my turbo volvo, it has been running on Mobil 1 since it turned 80k miles. Current milage is 250k and it runs just fine. Trans was rebuilt around the 125k miles, and has been using Mobil 1 trans fluid since. Rear differential also runs Mobil 1 gear oil.

One of my H-Ds has 60k miles on 15W-50 Mobil 1 and the newer H-D has 35k miles. Take into account, that they are air cooled, roller cam engines, and they tend to run hotter than water cooled engines. Amsoil 20W-50 runs great in these engines, but it is more expensive and hard to find.

The old stories of synthetic oil causing leaks, was due to the old synthetic formulas. The newer formulas do not have any noticeable affect on gaskets or seals.

Synthetic oils not only retain their viscosity better than dinosaur juice, it also hold up better under extreme heat conditions, and loads.

Consumer Guide did a test with NYC cabs running rebuilt Chevy 350s. It has been the most intense, non-oil company sponsored test. The conclusion, NO added benefits changing mineral based, motor oil at 3k miles. Mineral oil can last up to 7k, without engine problems, related to oil breakdown. The only benefits to changing oil at 3k, the oil companies will love you more.

I am not sure if the Consumer Guide, motor oil test is available online. It sure debunks a lot of old oil mysteries and stories.
__________________
'72 GMC custom camper 350/350
spinning wheels is offline   Reply With Quote
Old 02-28-2009, 12:37 AM   #16
greygoose
Registered User
 
greygoose's Avatar
 
Join Date: Mar 2008
Location: N.C.
Posts: 250
Re: Recommended Oil for a factory 350?

I'm wondering if anybody has tried royal purple in their truck?
__________________
If it ain't a chevy,I don't want it
greygoose is offline   Reply With Quote
Old 03-02-2009, 10:38 AM   #17
cedorris
1972 Chevy Cheyenne Super
 
cedorris's Avatar
 
Join Date: Feb 2009
Location: Oklahoma City, OK
Posts: 302
Re: Recommended Oil for a factory 350?

AutoZone was running a special for 5 quarts of Mobil Clean 5000 and a STP oil filter for $12.99.

Looks like next time I change oil I'll be running Mobil Clean 5000 10w-30.

Also, do you have any recommendations on filters? I've heard a lot of good things about Wix and I know for a fact that Walmart's SuperTech filters are manufactured by Wix so that's what I've been using. Would you folks recommend anything different?
cedorris is offline   Reply With Quote
Old 03-02-2009, 11:34 AM   #18
leddzepp
Moderator

 
leddzepp's Avatar
 
Join Date: May 2007
Location: Southern Cal
Posts: 14,154
Re: Recommended Oil for a factory 350?

Amzoil, Mobil one, Royal Purple.

Use any filter except Frahm.
leddzepp is offline   Reply With Quote
Old 03-02-2009, 11:59 AM   #19
1970cstblazer
All stock and staying that way
 
1970cstblazer's Avatar
 
Join Date: Jul 2003
Location: Corning, NY
Posts: 497
Lightbulb Re: Recommended Oil for a factory 350?

WIX and its clones, Baldwin, Delco are good filters, although I don't like the PF-1218 filter now specified for the replacement of the PF-35, so now I run WIX. Pretty much anything but the Frams and clones.
__________________
1970 K/5 Blazer CST 4WD, Bronze, 93k ACT. miles, 350, 4 speed, 3.73 positraction, 16.5"x8.25" wheel option, tach, manual throttle...original family owned. Under restoration...

1972 Cheyenne Super 20 2WD, DK Blue/White, 82K ACT. miles, 402, TH400, 4.10 open, tilt, tach, vacuum, A/C, AM/FM, manual throttle.. A mostly original paint never rusted Texas survivor...
1970cstblazer is offline   Reply With Quote
Old 03-02-2009, 12:03 PM   #20
weircc
Registered User
 
weircc's Avatar
 
Join Date: Dec 2008
Location: richmond, MO
Posts: 791
Re: Recommended Oil for a factory 350?

I will say this and i think a lot of you will agree everyone has there pro's and con's about oils but i don't think anyone is gonna recommend any brand of walmart oil but that's just my opinion.Myself i prefer castrol 10w-40 all year round
weircc is offline   Reply With Quote
Old 03-02-2009, 02:09 PM   #21
cedorris
1972 Chevy Cheyenne Super
 
cedorris's Avatar
 
Join Date: Feb 2009
Location: Oklahoma City, OK
Posts: 302
Re: Recommended Oil for a factory 350?

Quote:
Originally Posted by weircc View Post
I will say this and i think a lot of you will agree everyone has there pro's and con's about oils but i don't think anyone is gonna recommend any brand of walmart oil but that's just my opinion.Myself i prefer castrol 10w-40 all year round
I been doing a lot of research online and have found may sites agreeing that Walmart SuperTech is generally a good oil. Some sites say it is made by Warren Performance Products and others say Valvoline.
cedorris is offline   Reply With Quote
Old 03-02-2009, 02:45 PM   #22
cedorris
1972 Chevy Cheyenne Super
 
cedorris's Avatar
 
Join Date: Feb 2009
Location: Oklahoma City, OK
Posts: 302
Re: Recommended Oil for a factory 350?

Here is a great post about Oils in general:
http://www.boss302.com/oil.htm
cedorris is offline   Reply With Quote
Old 03-02-2009, 03:08 PM   #23
lowbucktruck
Registered User
 
lowbucktruck's Avatar
 
Join Date: Apr 2008
Location: Sacramento, California
Posts: 59
Re: Recommended Oil for a factory 350?

Ditto, I used Castrol 10W40 dino oil in my old truck's stock 350 Goodwrench motor, it liked it. Ran smooth. Unknown number of miles on the truck, odometer tells me 80k (more like 180k I'm sure). I sure don't change the oil in that truck every 3k miles, more like 5k miles.
__________________
"Two rules get you through life: If it's stuck and it's not supposed to be, WD-40 it. If it's not stuck and it's supposed to be, duct tape it."
lowbucktruck is offline   Reply With Quote
Old 03-02-2009, 05:58 PM   #24
weircc
Registered User
 
weircc's Avatar
 
Join Date: Dec 2008
Location: richmond, MO
Posts: 791
Re: Recommended Oil for a factory 350?

Quote:
Originally Posted by cedorris View Post
I been doing a lot of research online and have found may sites agreeing that Walmart SuperTech is generally a good oil. Some sites say it is made by Warren Performance Products and others say Valvoline.
Well as for me ill never run it.But im sure some ppl run it and don't have no problems but IMO there's a reason why you can get a whole oil change labor and all for 19.95.Im a firm believer in you get what you pay for.
weircc is offline   Reply With Quote
Old 03-03-2009, 12:39 PM   #25
spinning wheels
Registered User
 
spinning wheels's Avatar
 
Join Date: Sep 2001
Location: Hacienda Heights, California USA
Posts: 474
Re: Recommended Oil for a factory 350?

I finally found the NYCity taxicab oil test. This makes interesting reading and debunks many myths about motor oil.

Hope it helps you folks here on the site.
The first report is from Consumer Reports, not Consumer Guide, as I had thought.
Its web address is.

http://www.moneybluebook.com/article....oilchange.php

Not sure why the link above is not working, seems the address is edited when I post.

This is how it should read, after the thee w's

moneybluebook.com articles consumerreports.oil change.php

add a backslash between the single words. moneybluebook and consumerreports are spelled out as one word.


The second report, but it looks like Amsoil attempted to copy the first report, is.

http://www.pecuniary.com/synthetics/.../taxitest.html

Good info, even if you don't agree with everything in the reports.
__________________
'72 GMC custom camper 350/350

Last edited by spinning wheels; 03-03-2009 at 02:05 PM.
spinning wheels is offline   Reply With Quote
Reply

Bookmarks

Tags
350, chevy, factory, oil, v-8

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


All times are GMT -5. The time now is 03:55 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Copyright 1997-2013 67-72chevytrucks.com