Tohatsu 2 stroke gear oil

[chrissd330]

I have some sae 80 gear oil in the garage is this suitable for my Tohatsu 9.8 2 stroke.

[spartacus]

Originally Posted by chrissd330

I have some sae 80 gear oil in the garage is this suitable for my Tohatsu 9.8 2 stroke.

Use the right stuff, Yamalube (SAE90/GL4) specification or Quicksilver Premium. Replace the fibre washers on the fill and drain screw bolts.

Using SAE80 is a bit like having full cream milk in your tea with three sugars!

[chrissd330]

Thanks for your help,Sezuki Marine do a 1litre bottle with pump for Tohatsu 2 stroke 5-140 hp,should get 3 fillings out of that,would that be as good as the Yamalube

[spartacus]

Yes. Anything by the big manufacturers is spot on. The Suzuki stuff is by Motul is SAE90 GL5. The pump makes life a lot easier.

[chrissd330]

Thanks Spartacus,I shall go and order some now.

[jyasaki]

Originally Posted by spartacus

The pump makes life a lot easier.

Make sure the little threaded fitting on the hose fits your drain hole [yes, I did type that correctly. See below.) I suppose it would be possible to hold a hose in position and fill, but the threaded fitting means you need one less hand.

To clarify the above statement:

When draining, remove the top plug, position a catch vessel, and remove the bottom plug.

Once drained, pump fluid into the bottom hole until it begins coming out the top. Install the top plug. Then remove the fill hose and install the bottom plug.

I think they do this to prevent air bubbles from interfering with a complete fill, as the fluid is pretty thick.

jky

[willk]

Originally Posted by jyasaki

I think they do this to prevent air bubbles from interfering with a complete fill, as the fluid is pretty thick.

jky

Yup! Boaters tend to do this in winter when the oil has been sitting in a cold shed/store. It helps a lot if you get it nice and warm before you start

[Bushrider]

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[chrissd330]

Thanks Jyasaki for that,makes the job of changing the gear oil look a lot easier,I expect the threaded fitting will be the wrong thread knowing my luck.
Willk should i run the engine for 5-10 minutes to warm the gear oil before draining it out,and warm the new oil at room temp before putting it in.

[spartacus]

No need to run the engine. You can leave the drain screw out for an half an hour or so, before returning to fill. The new gear oil will be fine at room temperature.

[chrissd330]

Thanks Spartacus,I`ll leave it to drain out and go for a tea break.