Engine/Transmission oil for 1977 cb750a

[2005triker]

New to the site!  I recently purchased a 1977 Honda CB750A (Hondamatic) and am wanting to change the oil.  The manual calls for 30 W or 10W40 with API - SE.  So far I've been unable to find oil with the API-SE but i'm sure someone out there has found a successful alternative.  Any help would be greatly appreciated.  Thanks!

[Needforsteve]

I'm not 100% on what you should be considering regarding the selection of the oil; many people believe motorcycle engines require different additives and compositions than automotive oils, but I can tell you that you can stop searching for SE-rated oils. It's an obsolete rating and if you find any on a shelf somewhere, it's likely to be so old it's oxidized beyond use. Using new oils rated SN, which is the newest rating, should be fine.

The weight and type are the labels to look for, not the API rating

[2005triker]

I appreciate the info.  My main concern was for the automatic transmission but it sounds like all my worry (and running around) was unnecessary.  Interestingly enough, even our local Honda dealer didn’t have any suggestions.  Thanks again!

 

From: Needforsteve [via Honda CB750'S] [mailto:[hidden email]]
Sent: Tuesday, September 16, 2014 2:58 PM
To: 2005triker
Subject: Re: Engine/Transmission oil for 1977 cb750a

 

I'm not 100% on what you should be considering regarding the selection of the oil; many people believe motorcycle engines require different additives and compositions than automotive oils, but I can tell you that you can stop searching for SE-rated oils. It's an obsolete rating and if you find any on a shelf somewhere, it's likely to be so old it's oxidized beyond use. Using new oils rated SN, which is the newest rating, should be fine.

The weight and type are the labels to look for, not the API rating

'81 CB750C *in progress*

 

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NAML

[LukeM]

I'm sure TOOLS will chime in: he's got one or two of these machines.
Luke M

[TOOLS1]

Texaco Havoline 10W-40. 4 quarts. Change every 3,000 miles.
TOOLS

[2005triker]

Thanks!  I appreciate the info!!

 

From: TOOLS1 [via Honda CB750'S] [mailto:[hidden email]]
Sent: Tuesday, September 16, 2014 7:38 PM
To: 2005triker
Subject: Re: Engine/Transmission oil for 1977 cb750a

 

Texaco Havoline 10W-40. 4 quarts. Change every 3,000 miles.
TOOLS

Life is not about the number of breaths, you take, but the moments that take your breath away.
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1976 CB 750-A X 2
1977 CB 750-A X 2
1977 CB 750-K X 2
1976 CB 750 F
1981 CB 750
1966 Kawasaki SG 250
1981 KZ 750 LTD
1973 CB 350
1979 CM 185 Twinstar
1982 Honda XL 80
South of Eden (Kansas City MO)

 

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[Re-run]

Either flavor of rotella works well. I use the 5-40 synth version and it works very well. A bit more expensive but handles high heats much better than conventional oil.

[TOOLS1]

You have a matic?
TOOLS

[Re-run]

Nope, but if havoline works in it, so will this stuff!

I actually used havoline years ago.