250-500cc Gearbox oil - how much to fill? 08 WR250

Hi all. Sorry for being a bit thick but have not changed the gearbox oil on my WR yet (not ridden it more than 20 mins since picking her up in March!). I have my first race coming up some want to get her ship shape. I have the owners manual and it say 0.70 imperial gallons which doesn't mean anything to me as we use ml in the UK and can't find a conversion tool on Google. Any tips on filling the gearbox on the 08 WR250?

Thanks as always

Myles

I have 2006 wr 250 (same engine as yours) and I use 0,8 litres of gearbox oil.

That is great, thank you.

You sure it says gallons? That would be a pretty bad typo. Should say 0.7 quarts.

In any case, it's about 0.7-0.8 liters, but the important thing is to fill it until it comes out the oil level check oil on the clutch side. That matters more than the exact quantity.

I put 23.5 ounces in mine.

Hi.. My mistake it was 0.7 qts !. Thanks for the tip re the viewing hole. I did wonder if that was an option as there doesn't appear to be anywhere on the cases to indicate an amount (as per Yamaha etc).

Thanks again all.

Myles

Hi - one last question. Anyone know the socket size for the drain bolt under the motor?. Discovered I don't have the right size in my toolkit but don't want to guess before heading to the shops to get a new socket. Many thanks guys

24mm socket for info in case anyone searches on this in the future.