Originally Posted By: Chuck1986
Speaking of Castrol GTX: I'd like to see more of its flow/viscosity numbers and TBN. Castrol's website is pretty vague with the data provided:
http://www.castrol.com/liveassets/bp_internet/castrol/castrol_usa/STAGING/local_assets/downloads/p,q/psd_gtx_usa.pdf
Another thing I forgot mentioning about QS oil is that they put "Slick 50" in their high mileage product. We all know that stuff is snake oil, which doesn't speak well of the R&D department.
The Slick 50 they put in it is different than the Slick 50 of old. This is basically just an additive package now, if I remember correctly. No Teflon or anything like that.