Leaderboard

I get the best results with 78.09% nitrogen, 20.95% oxygen, 0.93% argon and 0.04% carbon dioxide. Somewhat higher proportions of carbon dioxide will not affect tire pressure, but may have other negative side effects.

It's like having 500 TV channels and then watching Corrie and Stenders, mostly just something to talk about down the pub. 10W97 fully sympathetic with added nigellium as used by TT winners just ticks boxes for some people. The dealers use 10W40 because they buy it in 50 gallon drums and can't be bothered to order anything special. Has anyone ever made a dealer change it again? Did they, or did they just write another bill out? They know naff all about DCT (or other things, for example that my CB handbook says oil at 8000 miles not 4000 as they told me when I picked it up) and don'

Well he shouldn't. The specification is perfectly clear: 10W-30 in temperate climes.

I don't use a dealer. I train them, so see the level of recruit, the pressure they put them under, the management etc. Some are OK, some shouldn't be trusted with lego, none take care I do with my own work. Andy

The dealer of my wife's NC uses MOTUL 10W-40 full synthetic, probably because that is what they need for most other bikes. It seems to have no ill effect on the NC and, with Summer temps over here peaking at 38° C, our climate is not that temperate anymore.

Take care with that mix, it can contain aerosol hydrogen dioxide. If using bottled, make sure you don't get the wrong bottle off the gas axe. Acetylene will really ruin your ride. Andy

OIL THREAD ALERT 10W40 here. Its cheaper, it's more readily available, it does what's required, at 8000 miles most of us are changing it early anyway. Spend your time checking your tyre pressures instead of fussing over something that'll effect the fifth owner of your bike. Andy

Then maybe you could use the word “some” rather than insinuate that it applies to all dealers. I know that the guys at my dealers are trained on site at at the Honda UK training centre and I’m sure that this applies to other dealers.