SU Carb Oil - SAE20?

[ddezso]

I hav noticed that one of the SU carbs on my 1970 240Z is low on the oil that goes in the top. Every book I have read says you MUST put SAE 20 oil in there. I can't find that at any local auto store.

Is there an alternative or where would I find SAE20 oil?

I also cant tell exactly where the fill line is. What is the proper level in the carb?

Thanks........

[SteveJ]

Well, you could order it from MSA. I also found 20 weight oil at Ace Hardware. I think it was sold under the 3 in 1 brand.

[cj71z]

I found some at the local parts store, apparently new Hondas are using it. 0w-20. It was kinda expensive because it's synthetic. I went back to 30wt since it's getting cold, my acceleration seems a little better now.

[SteveJ]

0w-20 is a multiweight oil. It would not necessarily act like 20 weight oil all of the time. I'm not sure how a thicker oil would help you when it gets colder. It sounds counter-intuitive to me.

[Arne]

Should be able to get straight 20 weight at a motorcycle shop - most brands of fork oil are available in that weight.

[72' 240]

A good quality of ATF is recommended by "ZTherapy". It just happened to be what I had been using for some time. It is great, but a bit thinner so check it every so often.

Hope that helps-

72 240

[ddezso]

Sorry but what is ATF?

[Arne]

Automatic Transmission Fluid

[=Enigma=]

Sorry but what is ATF?

Spoken like a true lover of driving......ATF what? .

[Murph]

I'd previously been recommended (and used) sewing machine oil. I'm now using a machine oil - engine oil mixture and it's eleventy billion time better. Nice sharp throttle response. Now...I just can't remember the damn ratio!

[Ed]

Most Automatic Transmission Fluid is 20wt oil. And several people use it in the carbs. I do and have no problems. The fill line is on the shaft. Don't worry if you over fill. It will get sucked into the engine and burn off.

[bpilati]

Ed, I think you can safely say most people.