I've run fully synthetic in my WBX engines with good results for 10 years. 15W50 Mobil 1 was my choice until I found 10W60 BMW oil. 

Chris.

Wysłane z iPhone'a

Dnia May 13, 2012 o godz. 15:49 neil n <musomuso@GMAIL.COM> napisał(a):

> Hi all.
> 
> Searched  "Hypuron" in archives. Didn't get any hits.
> 
> I don't know if the TBN and Low Ash aspects help a gas engine, but
> looking at "Oxidation Control & Shear Stability" here:
> 
> http://www.castrol.com/castrol/genericarticle.do?categoryId=82915547&contentId=7025207
> 
> seems this might be a decent oil with a good price balance between
> 100% synthetic and conventional oil.
> 
> Has/is anyone using this product?
> 
> When introducing a synthetic blend oil to a an engine that's been
> running NON synthetic, is there a high risk that the new oil will
> cause seals to leak?
> 
> My goal isn't to extend oil change intervals. Just want to provide
> better protection for bearings etc.
> 
> 
> Neil.
> 
> -- 
> Neil n
> 
> 65 kb image Myford Ready For Assembly  http://tinyurl.com/64sx4rp
> 
> '88 Slate Blue Westy to be named.
> 
> '81 VanaJetta 2.0 "Jaco"  http://tubaneil.googlepages.com/
> 
> Vanagon VAG Gas I4/VR Swap Google Group:
> 
> http://groups.google.com/group/vanagons-with-vw-inline-4-cylinder-gas-engines