oil consumption

[Anonymous]

My GS1100GL used 2.5 litres of oil on a 3600km trip. This means a 0.7 litres per 1000 km. Isn't this VERY much ???

thanks

G

[Anonymous]

yep, it is very much.

First of all I'm not an expert on oil, but:

old motors might use a bit of oil. But 0.7 litres at 1000k is a lot.

Do you have a leak? (drops of oil under the bike after standing still for a while? check the place it's coming form and redo the packing)
When you hit the gas suddenly and fully, does white or blue smoke come out of the exhaust? (internal problem, blown up engine, you have a problem, maybe redo the piston rings? not sure on this though, but you're burning gas AND oil (no good))

[focus frenzy]

3/4 of a quart in 620 miles (700ml in 1K km) is a bit excessive, have you been stuck in traffic with a high ambient temperature?? these air cooled engines will suck down the oil when they get to hot.

how many miles (KM) are on the bike?
has it ever been overhauled?

[SqDancerLynn1]

Also make sue that the carbs are working properly If it is running rich it could be washing the oil off of the cylinders. But probably bad valve seals