Castrol R 30

[evo550]

Anyone else use this stuff and get a horrible orange stain on anything the fuel touches

[Lozza]

The orange will be from water in the fuel, makes to oil go that colour.

[DR]

I get the really nice purple tinge on anything it's on externally and internally I sometime get a bit of a glaze on the piston but I like the stuff. Actually use both R30 and A747 which is castor based also. A747 is primarily for karts and road racing but it works well in the 125mxer's too as they're ridden pretty much on the stop

[jimson]

I use the R30 as well its all good even the smell makes me happy  jimson

[DR]

yes the smell Jimson..pure gold! I use it in my line trimmer, blower and 2 banger mower too and I'm still not sick of it

[bigk]

I use R30 in my modern 4 stroke @ 200:1, spupposedly to help the valves, but really just for the smell. I had a guy convinced I had model car nitro fuel in it at $16.00 per litre once. Smells great combined with avgas.
Cheers,
K

[Tim754]

Castrol Oils are now owned by BP  And yes they have wiped most BP oils off the books in Australia to sell their Castrol products and are "Reviewing" castor based and other low volume racing oils from Castrol now....................................

[oldyzman]

Hey Guys,
Has anyone had any bad experiences running a full synthetic oil motul 800 at 30:1 in old yz orRM? As if there may be implications i'm all ears to save myself some grief..
Brett

[Freakshow]

Isnt the "R " now sold in the square tin as "M" ?  as in castor M

[jimg1au]

there is 2 types of castrol R 1 for methenol and 1 for petrol
cheers

[BONEHEAD]

i use r30 and the teenage years come flooding back ,its funny how certain aromas stir the emotions, its top shelf and its available at supercheap autos. its like smellig your mums roast dinner on a sunday. .cheers bonehead.

[dirttracker]

castrol m is for methenol r is for petrol.

[jimg1au]

your right
years ago it was only castrol r or shell m.but times have changed now there is castrol m and shell m
still 2 types of castrol r
R30& R40
CHEERS

[NR555]

Thank god for speedway bikes.  Castrol R & methanol produces the best smell on the face of the planet.

Hey Guys,
Has anyone had any bad experiences running a full synthetic oil motul 800 at 30:1 in old yz orRM? As if there may be implications i'm all ears to save myself some grief..
Brett

Here's a quote from my experience in an older thread that may help you:

We've done a lot of work on oils, and it really varies from bike to bike.  We couldn't stop a CZ bore glazing up on synthetics.  I'd find that by the end of a raceday, I'd be noticeably down on power until we stripped it and honed the bore again.  It was literally a mirror finish glaze.  Motul, Rock Oil, Silkolene, Castrol R2; all the same result.  What's good for modern nicasil, ain't necessarily good for iron sleeves.

We switched to Castrol A747 and it has worked very well.  A lot of you guys would be familiar with this oil, although it's a little harder to find these days.  A747 is a castor/synthetic hybrid.  The fumes have quite obvious Castrol R qualities, and it works best at the richer end of the mixture range.  Castrol recommends where you would run R2 synthetic at 40:1, you'd run 747 at 25:1.

Graham Bell's thinking holds true, especially in two stroke racing like karting.  Air cooled sprint karts rev to silly numbers, and we always ran ours at 20:1 on Penrite mineral oil.

[matcho mick]

Brett,been running Motul 800 in my ossa since "rebuild",(hone bore,select best rings, ,mbrgs,& seals),no probs,but then i'm only doing 3lap races on dirt track,mix is approx 30-40 to 1,also using Motul gear oils in the gearbox/primary as well,all good so far