I fully appreciate it will add no performance benefit at all but I would love to gently perfume the countryside if I could do so without breaking my bike. Which when combined with a standard air cooled engine like what we have on a SOHC Bike, wouldn't there be piston seizures?

i use it in my trials bike and ride round in circles just for a wif ,ive even been known for putting it in my mates road bike and then ride behind all day . Castrol R used to always separate from the fuel that's why we had to shake our bikes before we started them (I still do that now! Never had a problem with it at 40:1 and it doesn't gum up the carb if you don't drain it if it's stood for a while.I’ve had no problem with sticky rings or anything of that nature but I have read of the “glaze” that it leaves on engine components. Castrol POWER1 R 40 is a castor-based lubricant containing specially prepared additives to prevent rapid deterioration through oxidation. Sorry for my poor choice of adjective, I was purely using this term figuratively and should have chosen a more suitable description. The 103 third parties who use cookies on this service do so for their purposes of displaying and measuring personalized ads, generating audience insights, and developing and improving products. If you do use veggi based oil it is fine on its own, but will need changing very freqentley, But the smell is Great Aye.

Fatty acids are polarised molecules comprising an oily, hydrophobic (water-hating) head and a hydrophilic (water-loving) tail; the hydrophilic ends of castor oil molecules are adsorbed to the metal surface, leaving the oily heads protruding. Castrol R 40 SAE 40 4T Racing Engine Oil is castor oil-based and for motorcycles and classic or racing applications. casrol r reminds me of days when men were men no health n saftey shit speedway ,grit, noise, dirt and a 6 year old kid could wander around bellvue speedways wooden track without his dad having to worry if out would happen. Nowadays a flexible fibre optic device is used but in days of yore a sigmoidascope was used - simply a worryingly large diameter brass or stainless steel tube and a torch. Aways ran 80-1 on 747 and never a problem with the trials bikes and imo it is the best 2T oil you can use.Even now, it is still recommended to change castor oil frequently, even though modern castor oil has additives to reduce oxidation, which causes lacquers and deposits to form on various engine parts, and also additives to reduce corrosion from the moisture absorbed readily by this type of oil.

Growing up in the UK in the 1980's we tore around on our "Fizzies" RD50MX is what I had, RD125LC, RD250LC etc etc. I drained the R, filled with 15W-40 diesel oil, ran it until it was warm, drained the 15W-40 and refilled with normal 20W-50. Now I don't really know what the gooey stuff was but I have a very good idea and as you can imagine, certainly didn't want them to do an analysis. A local guy who always used 747 in his moto-x engine filled up with neat fuel and the bike ran for a considerable amount of time before he noticed a problem and when he stripped it down there was barely a mark , in which he put down to the quality of the oil still remaining in the bike . Then you'll get the full effect, smoke and all or at least the rider behind you will, just like the 'good old days'!then fit a harris to a z900 might put some in that though it aint my bike though id get the smell when my mate rides off on it.

The result is that castor oil provides excellent boundary lubrication, much better than that achieved by early mineral alternatives.Mineral oils relieved these limitations, even in their early forms offering a level of thermal and oxidative stability traditional lubricants couldn’t match. Even today castor oil remains the lubricant of choice in certain applications, notably methanolpowered two-strokes because of its complete miscibility with alcohol fuels. I now run it religiously in my rally car and it gives steadier pressure than the Millers CTV I ran before it. On the ground, progress was scarcely less momentous as the horseless carriage progressed from being a curiosity and plaything into an increasingly practical mechanism, as well as another vehicle of human endeavour and national rivalry.