would this oil be ok in yb ? i run 10w 50 but would like a bit thicker to hold a bit more pressure at idle. does anyone use this in a yb ?

 

I use VR1 in the RB26 in my Chaser. Think its 10W50 innit? Tho id prefer 10W60

Idle pressure is a bit pointless IMO anyhow, its after that you wanna worry.

 

far too thick IMO....

i used to run castrol rs 10W60 in the escos. after a good blast, sitting at idle at a set of lights the oil pressurte light would flicker on and the oil pressure on the gauage was next to nothing, a small blip on the throttle and it would come up bu the engine did sound like a bag of spanners.

after taking some good advice from on here from oilman, i put in some fully synthetic silkolene 5W40 (too thin i hear you cry!!!) but believe it or not, after the same run, the silkolene held better oil pressure and the engine was much quieter, not only after a run, but from cold aswell. unless i'd seen this with my own eyes i'd have not believed it.

its to do with how the law changed on the marketing of 'fully synthetic' oil, they are now allowed to call some oil fully synthetic even though it has some mineral content in it, there is a % limit that they are allowedto blend in (for cost effectiveness) and still call it fully syn. the silkolene is 100% fully syn, as as such is priced acordingly. amazingly aswell though, since switching to the silkolene, i had to top up my oil less that i used to when running the castrol RS.

 

I think most people here would agree that Castrol RS is fit barely for lawnmowers, let alone your YB.

 

in most part true.......

however there is a 100% fully synthetic castrol RS that BMW use, and this is only available from a BMW dealer and is priced accordingly

 

We had some bad experience of VR1 on Subarus. I woudn't risk it. Motul is the way to go

 

Where is Oilman and his immense technical knowledge when you need him??

 

Absolutely totally agree, I've had the very same experience
The Silkolene Pro-x 5/40 maintains hot pressure very well by comparison

 

I put valvoline synpower 5/40 in my cossie last night used this stuff in my cossies for 11 years now and never had to do a rebuild..must be ok!!

steve

 

thats just as good as the silkolene , ie a real 100% synthetic oil with the corect viscosity .