Oil type

[Samuel Phelps]

Not to start a big debate but which type 2 stroke oil should I use for my Speeditwin . Synthetic tcw-3 ?

[garry-in-michigan]

If everything is OK (No excessive clearances) Synthetic TCW3 would be great at ⅓ of a pint to the gallon.

• This reply was modified 4 years, 6 months ago by garry-in-michigan.

[Samuel Phelps]

So you mean if it has no excessive clearances / meaning good compression ? Then 1/3 pint synthetic is good amount .. So 5.3 oz per gallon ..
Sorry if stupid question ..

[eltoquad]

1/3 pint per gallon!!!!!???

[Samuel Phelps]

I guess with synthetic you don’t have to add quite as much .
Reg tcw-3 at 16:1 is 8 oz per gallon ..

[Tom]

Unless I missed something somewhere, we should probably pin down what model Speeditwin you have. A ’27 Model T Speeditwin, a 6039 Speeditwin, and a ’60’s Speeditwin all have different oil requirements.

T

[Samuel Phelps]

Sorry its a 1949 – 6039

[bobw]

I believe the original spec for the 6039 model was 3/4 pint per gallon.

Bob

1937 Champion D2C Deluxe Lite Twin
1954 Johnson CD-11
1957 Evinrude Fastwin 18
1958 Johnson QD-19
1958 Johnson FD-12
1959 Johnson QD-20

“Every 20 minute job is only a broken bolt away from a 3-day project.”
"Every time you remove a broken or seized bolt an angel gets his wings."

[Samuel Phelps]

That would be 12 oz ..16:1 is 8 oz per gal right ?

[bobw]

Yes, 8 oz would be 16:1

Bob

1937 Champion D2C Deluxe Lite Twin
1954 Johnson CD-11
1957 Evinrude Fastwin 18
1958 Johnson QD-19
1958 Johnson FD-12
1959 Johnson QD-20

“Every 20 minute job is only a broken bolt away from a 3-day project.”
"Every time you remove a broken or seized bolt an angel gets his wings."

[Author]

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