(800) 853-2651
SHOP NOW

Oil for C

R

Russ from MN

Well-known Member
Location
Bemidji MN
I am going to be changing the oil in our C soon, I have some Shell 10W40 automotive oil, or some 15W40 Delvac. What do you recommend? I have heard about modern automotive oils not being adequate for older engines. This tractor gets worked pretty hard occasionally with a Woods mower.
 
The 10w40 is fine. you can get ZDDP at advance auto and from the internet. If you are going to work the old girl, I would add the ZDDP each oil change.

I do.
 
oops, didn't see you had 15w40. Either is fine, but if I had to choose, I would take the 15w40 also. BUT, you won't go wrong either way.

Remember one thing. More important than the brand of oil, and more important than straight weight vs. multi-vis, is choosing the right viscosity AND changing it regularly.

HD30 or 10w30, 10w40, 15w40, all are fine. HD20 in the winter around my parts. Brand of your liking.
 
The designation of oil weights is somewhat arbitrary but generally indicates the shape of a viscosity curve (honey has a high viscosity and water a lower viscosity) plotted against temperature of the oil. The shape of the 30 WT curve is not that much different from a 20-40 WT curve with the 20-40 oil having slightly lower viscosity at low temperature and slightly higher viscosity at higher temperatures. That might be a better fit for an engine where one would want good lubrication at start and sustained lubrication at higher running temperatures. Otherwise the better quality oil has a lower viscosity at low temperatures . . . so that the 5-whatever WT will be a good quality oil that will not tend to break down under use and abuse as quickly as the other oils.
 
You must log in or register to reply here.

Similar threads

R
Oil for Briggs 20 hp
Replies
4
Views
582
Mule Meat
Mule Meat
T
Oil for diesel engines?
Replies
19
Views
3K
Tree-Farmer
T
2
Thanks for advice. Rings unstuck after repeated oil cha
Replies
2
Views
3K
504
5
D
You have a new JD convert. I'm gonna need some on-going advice
2 3
Replies
41
Views
2K
Poppy Johnny
Poppy Johnny
C
Random oil questions...
Replies
8
Views
1K
BarnyardEngineering
BarnyardEngineering
Tractor Parts Tractor Manuals

We sell tractor parts! We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today.

Copyright © 1997-2024 Yesterday's Tractor Co.

All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.

Yesterday's Tractors - Antique Tractor Headquarters
Website Accessibility Policy

Back
Top