engine oil

[wutangbuzz]

I can get fully synthetic 10w40 oil for nothing from work. Is this suitable for my bike? Its used for bull dozers but oil is oil isn't it?

[Fazerider]

Sure, if your Fazer is a diesel engined one with a dry clutch there shouldn't be any problem.
Otherwise, the additive package may not be suitable and buying 10W-40 with the word "motorcycle" on the carton is a safer bet.

[johna6968]

+1 for bike specific oil.. semi synth for me personally.. Known quite a few to use regular oil without a hitch but wouldnt recommend it... Free oil does have a certain appeal tho 

[stevierst]

Cheapest things you can put in your bike is oil and fuel. No point in risking screwing it up by putting the wrong oil in it.
I believe that car/plant oil have friction modifiers in them which knacker wet clutches up.

Maybe read the manufacturers label and see what's in it.

[Fazafou]

Maybe send us all a load for our scottoilers though

[hightower]

Wor lasses diesel motor is a little low on oil - I had some spare from the bike I thought I'd use, but when I went to do it there was no mention on car/diesel/anything like that on the label, it only mentioned motorbikes, so thought safe bet to leave it out and get some proper car stuff for her.