Synthetics?

[flyryd]

I called and spoke to RP on this, over a year ago..they do not use the same
type of corrosive additive that other manufaturers use to get GL-5
certification. I have been running it in my tranny, and know several other
se-r owners that do as well...
Brad B. Phx  AZ
'96 200sx SE-R(w/ this 'n' that)
'01 Altima GXE LE

> what?  IIRC, the RP gear oil is dual-certified, which *should* mean it's
> safe for yellow metals like Redline MT-90 is.  Call RP though.