The Stovebolt Page Forums Home | FAQ | Forum | Swap Meet | Gallery | Tech Tips | Events | Features | Search | Hoo-Ya Shop
Helping out ...


EVENTS

Check in for status!

Jump over to the Events Forum, to post events -- new ones or the ones we have been enjoying for some time.
Look to see what's been cancelled or postponed.

Encourage one another!

Stovebolt Site Search
 
Old Truck Calendars
Months of truck photos!
Nothing like an old truck calendar

Stovebolt Calendars

Check for details!


Who's Online Now
19 members (68ironhead, BigUglyv1, DennisM, David C., 47chevySC, archburycontrol, 1 invisible), 231 guests, and 3 robots.
Key: Admin, Global Mod, Mod
Forum Statistics
Forums50
Topics119,911
Posts960,361
Members43,513
Most Online1,229
Jan 21st, 2020
Image Posting Policy
Previous Thread
Next Thread
Print Thread
Page 1 of 2 1 2
1961 235 oil weight and quantity?
#1216887 Thu May 11 2017 09:45 PM
Joined: Oct 2005
Posts: 740
F
Shop Shark
Hello!

My goal this spring is to get ol' Gertrude tuned up and happy. She is in desperate need of an oil change.

What weight oil is a good year round oil? She doesn't get driven enough to require much more than bi-annual semi-annual oil change.

How much oil does my 235 require?

Anyone know a good place to get the old school canister oil filters?

Thank you!

Kyle

Last edited by Fort Knox; Thu May 11 2017 10:04 PM.

"Never tell people how to do things. Tell them what to do and they will surprise you with their ingenuity." - George S. Patton

My Machine
Re: 1961 235 oil weight and quantity?
Fort Knox #1216888 Thu May 11 2017 09:51 PM
Joined: Jan 2014
Posts: 1,373
J
Shop Shark
Lots of trustworthy sources here use a 15w-40 diesel oil.

Filter depends on what kind you have. Mine takes a Fram C4 or equivalent. Can't remember the wix number off the top of my head.

Re: 1961 235 oil weight and quantity?
Fort Knox #1216890 Thu May 11 2017 09:59 PM
Joined: Sep 2001
Posts: 30,125
ace skiver

10W-30 was recommended by GM
10W-30, 10W-40, 15W-30, 15W-40 would be OK

bi-annual - every two years
semi-annual - twice a year
Factory recommendation: 2,000 miles
I usually change mine annually (once a year, in the Fall), unless I travel more than 2,000 miles in a year.

5 qts plus capacity of oil filter (if installed - 1qt or 2qt, usually)
Oil filter changed every 2,000 miles
There were many styles (brands/sizes/years) of filters that were used on 235s.

Do you have an owners manual and/or a Shop Manual?


Tim
1954Advance-Design.com [1954advance-design.com]
1954 3106 Carryall Suburban [stovebolt.com] - part of the family for 49 years
1954 3104 5-window pickup w/Hydra-Matic [1954advance-design.com] - part of the family for 15 years
- If you have to stomp on your foot-pedal starter, either you, or your starter, or your engine, has a problem.
- The 216 and early 235 engines are not "splash oilers" - this is a splash oiler. [chevy.oldcarmanualproject.com]
Re: 1961 235 oil weight and quantity?
Fort Knox #1216892 Thu May 11 2017 10:08 PM
Joined: Oct 2005
Posts: 740
F
Shop Shark
tclederman -

Thanks for the grammar edit, I fixed it above.

I have the owners manual somewhere. She has been in storage for a little over a year, still trying to sort out all my manuals and documents from a move / divorce. I know that dang manual is somewhere.

Does anyone run Lucas Oil Stabilizer? My 1993 GMC with the 6.5td loves that stuff.

Kyle


"Never tell people how to do things. Tell them what to do and they will surprise you with their ingenuity." - George S. Patton

My Machine
Re: 1961 235 oil weight and quantity?
Fort Knox #1216902 Thu May 11 2017 10:32 PM
Joined: Sep 2001
Posts: 30,125
ace skiver
Kyle,

I understand lost/hidden/stored manuals. I moved to NC around a year ago and I am still looking for manuals/documentation.

Regarding oil filter: you might find yours in this Stovebolt.com Tech Tip

Good luck with your truck.


Tim
1954Advance-Design.com [1954advance-design.com]
1954 3106 Carryall Suburban [stovebolt.com] - part of the family for 49 years
1954 3104 5-window pickup w/Hydra-Matic [1954advance-design.com] - part of the family for 15 years
- If you have to stomp on your foot-pedal starter, either you, or your starter, or your engine, has a problem.
- The 216 and early 235 engines are not "splash oilers" - this is a splash oiler. [chevy.oldcarmanualproject.com]
Re: 1961 235 oil weight and quantity?
Fort Knox #1216907 Thu May 11 2017 11:07 PM
Joined: Jan 2014
Posts: 1,373
J
Shop Shark
Related question. The bypass filters were optional equipment. They add a quart of capacity. I believe it will drain to crankcase when not running.

Fair to assume dipstick will be inaccurate after engine sits a while?

Re: 1961 235 oil weight and quantity?
Fort Knox #1216911 Thu May 11 2017 11:43 PM
Joined: Sep 2001
Posts: 30,125
ace skiver
GM optional 235 by-pass oil filters we usually 1qt, but a 2qt filter was also an option in many years.

One was on my 1954 3104 235 engine (RPO canister was painted black).


Tim
1954Advance-Design.com [1954advance-design.com]
1954 3106 Carryall Suburban [stovebolt.com] - part of the family for 49 years
1954 3104 5-window pickup w/Hydra-Matic [1954advance-design.com] - part of the family for 15 years
- If you have to stomp on your foot-pedal starter, either you, or your starter, or your engine, has a problem.
- The 216 and early 235 engines are not "splash oilers" - this is a splash oiler. [chevy.oldcarmanualproject.com]
Re: 1961 235 oil weight and quantity?
Fort Knox #1216916 Fri May 12 2017 12:20 AM
Joined: Jan 2014
Posts: 1,373
J
Shop Shark
So what about the dipstick issue I mentioned?

Re: 1961 235 oil weight and quantity?
Fort Knox #1216918 Fri May 12 2017 12:23 AM
Joined: May 2001
Posts: 1,446
W
Shop Shark
The 15W-40 diesel oil lubricant is traditional oil from petroleum.

I've noticed that synthetic/traditional blend is 10W-40.

Pure synthetic is 5W-40.

I take that to mean synthetic is a much better lubricant at cold temperature and they can get away with a less viscous oil on cold startup.

I use 6 quarts 10W-30 Mobil One synthetic (NAPA 1072 bypass oil filter) in my 261 and now change it once a year although I could go much longer than that. It gives me a chance to crawl under my '48.


1948 3/4-Ton 5-Window Flatbed Chevrolet

28 Years of Daily Driving. Now with a '61 261, 848 head, Rochester Monojet carb, 4.10 rear, dual reservoir MC, Bendix up front, 235/85R16 tires, 12-volt w/alternator, electric wipers and a modern radio in the glove box.
Re: 1961 235 oil weight and quantity?
Fort Knox #1216920 Fri May 12 2017 01:05 AM
Joined: Sep 2001
Posts: 30,125
ace skiver
Originally Posted by JW51
Related question. The bypass filters were optional equipment. They add a quart of capacity. I believe it will drain to crankcase when not running.

Fair to assume dipstick will be inaccurate after engine sits a while?
Originally Posted by JW51
So what about the dipstick issue I mentioned?

Put in 5 qts at an oil change and check the dipstick.
It should read at the mark.

If you have a 1qt oil filter (that drains back to the pan with the engine off), add one qt of oil.

Then, check the dipstick and scribe/mark it at the new level.


Tim
1954Advance-Design.com [1954advance-design.com]
1954 3106 Carryall Suburban [stovebolt.com] - part of the family for 49 years
1954 3104 5-window pickup w/Hydra-Matic [1954advance-design.com] - part of the family for 15 years
- If you have to stomp on your foot-pedal starter, either you, or your starter, or your engine, has a problem.
- The 216 and early 235 engines are not "splash oilers" - this is a splash oiler. [chevy.oldcarmanualproject.com]
Page 1 of 2 1 2

Moderated by  Woogeroo 

Link Copied to Clipboard
Home | FAQ | Forum | Swap Meet | Gallery | Tech Tips | Events | Features | Search | Hoo-Ya Shop
Powered by UBB.threads™ PHP Forum Software 7.7.4