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Joined: Feb 2007
Posts: 13
Grease Monkey
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Grease Monkey
Joined: Feb 2007
Posts: 13 |
Hello again,
I have a 1926 Chevy Coupe. I want to change all of the lubrication in the engine, transmission and differential. What is your recommendations.
Thanks,
Terry
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Joined: Nov 2001
Posts: 19,758 Likes: 64
ChatMaster - 15,000
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ChatMaster - 15,000
Joined: Nov 2001
Posts: 19,758 Likes: 64 |
I use either 30W or 10W30 in engines. Yes it has detergent. Since I am in the warm South a higher viscosity works for me. For cooler areas 20W or 10W30 would be a better choice. I use 90-140W or 600 weight oil in transmissions and rear ends. The recommended "heavy oil" specified is 600 or the modern 160W grade.
How Sweet the roar of a Chevy four!
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Joined: Nov 2006
Posts: 88
Shade Tree Mechanic
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Shade Tree Mechanic
Joined: Nov 2006
Posts: 88 |
With the removal of zinc (an anti scuff agent that keeps flat tappets from getting chewed up) truck 15-40, which still has plenty of zinc in it is a better choice. Four cylinder Chevy cams wear out far too quickly without giving them an excuse.
Herb Kephart
When I works,I works. When I stops to think,I goes to sleep
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Joined: Oct 2003
Posts: 814 Likes: 1
ChatMaster - 750
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ChatMaster - 750
Joined: Oct 2003
Posts: 814 Likes: 1 |
Keep in mind that your engine for the most part is splash lubricated. The heavier oils won't get splashed around as well as a lighter 5W30 or 10W30.
Steve
'25 Superior "K", '79 Corvette , '72 Corvette LT-1 & 1965 Corvette Coupe
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Joined: Nov 2001
Posts: 19,758 Likes: 64
ChatMaster - 15,000
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ChatMaster - 15,000
Joined: Nov 2001
Posts: 19,758 Likes: 64 |
I am not sure that all the heavy duty oils still have the same zinc levels as in the past. I recently purchased some Rotella T that was labeled as SM which is the same designation as the low or no zinc oils.
Splash lubrication is critical in all the pre-WWII Chevrolet engines so use of high viscosity oils are a recipe for disaster.
How Sweet the roar of a Chevy four!
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