eau de sauvage
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@HAPPYDAN, as far as I know synth is fine as long as it has not friction modifiers. I've been using on my gs for the past 15,000kms with not the slightest problem re slippage.
@Ruttly, at the initial oil change there were lots of grease blobs in the filter, but just one small one on this 6,000km change
@Batman, I ended up using the 15W50 Silkolene Comp 4 because that is what I was using on the GS and I wanted to use the same oil, seeing as they are both 30 year old bikes and the GS runs very cool. I guess it's a bit of a trade off because it's really really hot here for about 6 months of the year the rest of the time it's mostly hot, except when it's warm. I might go to a lighter weight though next oil change just to see if there is a difference because synth is supposed to keep it's viscosity better anyway.
@ditz, ha, after reading up in timing I don't even want to think about it.
I'm waiting for delivery of a motion pro feeler gauge because it was so difficult checking the valve clearances last time with normal gauges, I'll check the plugs then.
FWIW, this is how Fuchs replied to my question about their oil.
Silkolene Comp 4 grades already contain ZDDP, the use of extra additives is unnecessary and we would not recommend it. There are minimum phosphorus levels required for the JASO MA2 standard that our oils meet - therefore you can be sure that any MA2 registered oil will have at least 800ppm phosphorus, and this is always delivered in the form of ZDDP. The typical level of zinc for comp 4 is 1000ppm, phosphorus 900ppm.
Kind regards
Ajax Yhap Automotive R+D Chemist
FUCHS Lubricants (UK) plc
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