Castrol R 30

[Tim754]

 Inside whisper from BP is stock up fellas, time is running out on Australian Castrol castor oils stocks, soon to be available only on overseas back order and the price.....................

[Oggy Doggy]

Probably a dumb question but does Castrol R have a shelf life? I've got some that's been in the cupboard for at least 10 years.
I agree, it's the smell to die for. The methanol Castrol M smell brings back memories of the Sydney Showground Speedway every time I smell it.

[Freakshow]

i was told somthing along the lines of shell was bought out by BP or whoever makes Castrol is cutting the lines so there will only be "M" on the shelf, but yere what he said its going to be sidetracked cause its not got enough cash in it. 

maybe we start up a still in the back garden and buy up all the castor bean we can get for a massive brew up ! we can do like the wogs do with tomato sauce or clubs and port, we could have a make castor oil day and you get to take home a bottle.

yes im on drugs...............

[LWC82PE]

according to Mr Bell R30 is for watercooled motors and R40 is for aircooled motors

Penrite still make a castor oil too.

[evo550]

I've been using it for a while now, compared to synthetic/mineral oils mixed at the same ratio it produces far less smoke and or black exhaust "Gunk". Oh and a smell to die for. not to mention it's $10 cheaper a  litre
Problem is as I mentioned in original post, it has stained everything the mixed fuel touches ORANGE....it's a white bike.
I have a funny feeling silkolene also does a castor based oil also, might have a try at that to see if stains persist.
Has anyone tried the penrite stuff?

[Freakshow]

i though the numbers where for seasons s in winter or summer

[LWC82PE]

i bought a box of Penrite castor oil maybe a year ago, but i cant seem to find it on their website.

also try Rock oil. I know they did have it but it will again be a matter of seeing if they still make it.

[marshallmech]

Penrite still makes its castor oil also a HIper 2 stroke oil that I have been running in my 81 CR 125 at 25:1 for the last 3 years with great results and a good price too.

Andy Viper#70

[LWC82PE]

the Hiper 2 stroke oil replaced the TS40C Penrite oil which i found was really good, but the new stuff is not the same. The TS40C was approved for ultra lights but since they changed the formula/replaced it with the Hiper 2T oil it hasnt been approved and is not recommended for ultralights. The TS40C penrtite was a really good mineral oil for air cooled motors.

[DR]

I think unfortunately Evo the yellow stain on the white is part and parcel of the castor oil base. I don't think it would matter if it were Castrol, Silkolene or some other castor oil derivitive. I do recall the staining you mean and some KTM's I've seen suffered from it also, pretty ugly stuff. They say once mixed it should be used within 24 hours max so probably the tank should be drained when not in use. This then leads to the tank drying up and cracking if left dry. Damned if ya do and damned if ya don't as they say.

[albrid-3]

do you remember Castrol M, Love the smell of R, can you still buy it.

[YZ250H]

I get the orange stain as well.  I wonder if all the others do it.  I drain my tank after each ride.
Interesting to hear you are supposed to use it within 24 hours.
You can't beat the smell of it.

[albrid-3]

where do you buy it.

[BONEHEAD]

supercheap autos

[DR]

well that's the wordYZ250H. They say it starts to lose it lubricating properties after this time and being hydroscopic like brake fluid it absorbs moisture from various places such as the atmosphere and even from inside the tank and carb on a humid day. This can cause it to basically sludge up and thicken resulting loss of proper combustion and a drop in power. I've run the stuff after weeks in not so critical engines and there was little difference noted. I'm not so game to run it in my bikes after any sort of premixed duration beyond 48hrs max though as I value them a little more highly than my mowers, line trimmers, blowers or chainsaws