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Try them both and see

what works better for you in your climate. They are cheap to buy and you won't hurt anything in the carbs. Simply dump out the old stuff when switching and wipe clean.
 

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whats the difference?

whats the difference between the two ATFs? i live in S. California.ZZZZZ wrote:
>
> what works better for you in your climate. They are cheap to
> buy and you won't hurt anything in the carbs. Simply dump
> out the old stuff when switching and wipe clean.
 

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Re: whats the difference?

The reccommended oil is 20W-30 Engine oil. I have read of a guy using 20W-30 to 20W-50 and sewing machine oil. The ratio is three parts engine oil to one part sewing machine oil.
When you use the aforementioned oil mix if you attempt to raise the piston when the engine is cold you will find that a lot of force is required to move the piston to its uppermost position. When you release the piston, it will drop to the bridge quickly (less than half a second).
The oil changes viscosity and thickness when it warms up so using an oil that is of low viscosity to begin with will not do you any favors.
Check out this link for a load of info..
http://home.istar.ca/~datsun/att06.htm#Chec

And dont forget, unless someone has already swapped them out, most carbs in the Z's are Hitachi SU's so there are minor differences.
 
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