This is a good one you know when you clean you K and N air filter and need to re oil it| I had run out of K+N Oil on a sunday couldn't get any and was going on a run so looked and looked and looked on computer and found something startling , which got me out on a run and saved pounds of money and will do in the future .
Gues what is 1% different to original k+N its even the same colour as you would expect and I bet you have some yes its automatic transmission oil as near as perfect to K+N but for pence lol                                                                                                                                                                              

This one went in my notebook for future reference,very handy tip,DB..                                                                                                                                                                             

Thanks Jinxy it got me out on a run on a sunday when I couldn't get any K+N anywhere took some time on computer though lol                                                                                                                                                                             

ITS only 1% different to K+N genuine oil negligable