Thanks Curt, I am still collecting data. That's why I suggested using caution for extended drains rather than flat out saying "don't do it" which is what you seem to conclude from my statements. TBN is an important test to tell you have much life you have in the oil. Similarly, I don't find the viscosity test to be completely adequate. It doesn't tell you the actual viscosity, just the range it falls into, so you have no real way of knowing if the oil is thinning or thickening unless it does it enough to jump a viscosity grade. Recall that 5w-40 can actually be formulated thicker than 15w-40 because the grades overlap.
On Sun, Apr 22, 2012 at 2:18 PM, Curt Raymond <curtlud...@yahoo.com> wrote: > So show your data! > > No data means you got nuthin, you're just following that somebody else > said that Mobil 1 has "changed" and "isn't any good anymore". > > Why does my not having tested TBN make any difference? > > Besides with ultra low sulfur diesel TBN is less important than it used to > be. Actually I was under the impression TBN was less important on diesels > anyway. > > -Curt > > Date: Sun, 22 Apr 2012 11:29:13 -0600 > From: Brian Toscano <brian.tosc...@gmail.com> > To: Mercedes Discussion List <mercedes@okiebenz.com> > Subject: Re: [MBZ] Diesel OIL again > Message-ID: > <cacncphkxswri7r7vxysjeulzwnhdjadgmgttey2l9k1pxuj...@mail.gmail.com> > Content-Type: text/plain; charset=ISO-8859-1 > > Thanks Curt, I don't see any point in furthering the discussion since you > do not test for TBN. > > Thanks, > Brian > > > On Sun, Apr 22, 2012 at 7:51 AM, Curt Raymond <curtlud...@yahoo.com> > wrote: > > > Thanks for the offer Larry, I have a couple kits left, I'd like the long > > form next time if possible. How would I remind you of that? > > > > I'm still waiting for Brian to put up some data. He says Mobil 1 has > > changed and isn't as good. I provide data points spanning 6 years that > says > > he's wrong, he just questions my data... > > > > -Curt > > _______________________________________ > http://www.okiebenz.com > For new and used parts go to www.okiebenz.com > To search list archives http://www.okiebenz.com/archive/ > > To Unsubscribe or change delivery options go to: > http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > _______________________________________ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
