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hi guy..another of my goldwing mates has a 1982 us spec gl1100 aspencade...it has 135,000 miles on clock..his problem is that it uses a litre of oil every 1000 miles and has been doing so this year....
the bike doesnt smoke...compression is fine..starts and runs perfect.no lleaks...
i now do all the work to his bike but the garage he used to get it serviced in puts silkolene 15/50w fully synthetic oil in his bike.....to be honest i dont agree with that and i think the high mileage engine may be drinking that type of oil...
i would rather him use a normal or semi synthetic 10/40w oil..castrol magnetec etc...any suggestion?
ps..anyone got a owners manual for this bike for sale?

thanks
sean
 

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When i got my 83 1100 the PO had been using synthetic oil in it and it used some, about 1/2 as much as your friends. I changed to regular oil and it almost completely stopped using oil.
 

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Synthetic oil may not swell seals like regular oil. That's OK if synthetic is used from dayone but on an older engine that had spent its life on regular oil it's almost like the seals drying out.

Switch back to regular oil and see if the problem goes away.
 

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Hi

I have a gl1100 with similar mileage. It does use a bit of oil but not 1 litre! Of the oil use is not obvious then it could be from the rings. Might also be worth checking the airbox for signs of old oil contamination and a good look under the bike. I have just had new exhaust guides on both heads. They wore quicker than the inlet. Just athought for someone else with a high miler.
 

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Hi

I have a gl1100 with similar mileage. It does use a bit of oil but not 1 litre! Of the oil use is not obvious then it could be from the rings. Might also be worth checking the airbox for signs of old oil contamination and a good look under the bike. I have just had new exhaust guides on both heads. They wore quicker than the inlet. Just athought for someone else with a high miler.
 

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goldtop wrote:
Hi

I have a gl1100 with similar mileage. It does use a bit of oil but not 1 litre! Of the oil use is not obvious then it could be from the rings. Might also be worth checking the airbox for signs of old oil contamination and a good look under the bike. I have just had new exhaust guides on both heads. They wore quicker than the inlet. Just athought for someone else with a high miler.
i did a compression test and its within the readings in the workshop manual..underneath bike is dry..no oil leaks anywere..will look at airbox next time my mate comes to see me...i wil be changing the oil for 10/40 grade semi synthetic or normal mineral oil with new filter..will keep you informed..
 

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I only mention the airbox as when mine was in bits I noticed the pipe from the crankcase to the airbox as blocked up and full of sticky oil. The rest sat around the edge of the airbox close to where the breather pipes enter at the rear of the assembly. I only mention because this caused excess crankcase pressure leading to oil loss through weak points such as the gear change spline. I run on basic 10/40 oil and tend to change the oil and filter every 2500.
 
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