I'm trying to figure out if I should continue my use of Rotella T in all my cars (gas and diesel) or change to something more appropriate like Brad Penn and Royal Purple. Getting some clear information isn't exactly easy.
The simple questions are: Is Rotella T causing additional wear to my 1960s-80s engines? Will changing to one of the above reduce this wear? Jaime On Sun, Mar 18, 2012 at 8:12 PM, Larry T <l02tur...@comcast.net> wrote: > Please remember the Walmart brand shown is Not a Synthetic Oil - so the > info I gave is a little bit of apples and oranges -it was intended to give > a single viewpoint of the additive levels you are dealing with. I'm not > saying "Don't" use the Walmart brand - just be aware the Walmart label is > not synthetic. > > re the Zinc levels - yes, the Zinc is in an acceptable range - but it's > only one component of ZDDP which is critical to lubricating the flat > surfaces (like tappets) found on many older cars. > > Have a great weekend -- > > LarryT > > > > > On 3/18/2012 5:26 PM, Dimitri Seretakis wrote: > >> That is a high zinc level. Good to know as now I can consider that oil as >> a cheaper alternative to the expensive Brad Penn and Valvoline VR1 I use in >> my older cars for their high ZDDP content. >> >> Sent from my iPhone >> >> On Mar 18, 2012, at 10:32 AM, Jaime Kopchinski<jaime...@gmail.com> >> wrote: >> >> I'm a bit surprised the zinc is so high in both... is it generally known >> that zinc is being reduced in modern oils in general? I'd guess that >> Mobil >> 1 0w20 would fall under this category... hmmm. >> >> Zinc in the 1200-1300 range isn't bad, no? >> >> Jaime >> >> >> On Sat, Mar 17, 2012 at 3:03 PM, Larry T<l02tur...@comcast.net> wrote: >> >> Speaking of Oils and Walmart's Branded Oil "Super Tech 15W40", I had the >> Lab test a sample from a new bottle of this that I had just bought at >> WallyWorld. See the 1st column below - >> >> Since I didn't run these Oils in my cars the only numbers that tell a >> story are the Additives - all other values are dependent on engine use. >> So, we have the following Additive Levels - >> Sodium - 7 15 >> Potassium -<10<10 >> Molybdenum - 42 164 >> Phosphorus - 1124 1375 >> Zinc - 1262 1328 >> Calcium - 1105 3456 >> Barium -<10<10 >> Magnesium - 835 53 >> Antimony -<30<30 >> Vanadium -<1<1 >> >> A test of a new sample of 0W20 Mobil 1 has Additives with values shown in >> the 2nd column. >> >> Obviously, the big differences are in Molbdenum (a lubricating additive >> and in some situations a indication of Ring Wear), Calcium and Magnesium. >> There are some minor differences in the ZDDP additives whose abilities are >> pretty well known. >> The Calcium is used as Detergents, dispersants, acid neutralizer. >> The Magnesium is used as a Dispersant, detergent additive, alloying metal. >> >> I will leave it at that - I have 1 or 2 other samples of new oil that was >> done -- I'll dig them out and see if they are relevant - >> >> Have a great weekend! >> LarryT >> 91 300D >> >> On 3/15/2012 9:41 AM, Dieselhead wrote >> >> You can use M1 or Amsoil for Diesel engines rated CF in any aluminum head >> (OM60x) MB Diesel with extended change interval. You can use M1 CF rated >> in iron head (OM61x, OM621, OM636) MB Diesels with good results with >> normal >> change intervals. Some extended interval might be possible, but you need >> to use oil analysis to determine soot levels to arrive at change >> intervals. >> THe OM60x engines don't get as much soot in the oil as the iron head >> engines do. ULSD fuels in theory should produce less soot in the iron >> head >> Diesels too. >> >> The arguments come in whether the CI rated M1 oils still contain high >> enough levels of some components to adequately protect older Diesels. >> >> Beware of Castrol syntec and other "synthetic" oils. They provide NO >> extended change interval capabilities. Jury is still out on Royal Purple >> and Valvoline synthetic. >> >> List member LarryT can help with oil analysis. >> >> I use M1 in my 603s with 10k intervals and dino in the 616s with normal >> intervals. >> >> Let the arguments begin..... >> >> I have been reading with interest the threads re the "smoking SDL" and >> the >> turbo issues. In them there are references to using M1 oil, and I am a >> bit >> confused/curious. I have been under the impression that the older >> diesels >> should not be using synthetic oils, and not to switch from dino to >> synthetic. Am I wrong here?? Thanks >> >> >> Ralph '87 300 SDL >> '84 300 CD >> >> >> >> ______________________________****_________ >> http://www.okiebenz.com >> For new and used parts go to www.okiebenz.com >> To search list archives >> http://www.okiebenz.com/****archive/<http://www.okiebenz.com/**archive/> >> <http://www.okiebenz.**com/archive/ <http://www.okiebenz.com/archive/>> >> >> To Unsubscribe or change delivery options go to: >> http://mail.okiebenz.com/****mailman/listinfo/mercedes_****okiebenz.com<http://mail.okiebenz.com/**mailman/listinfo/mercedes_**okiebenz.com> >> <http://mail.**okiebenz.com/mailman/listinfo/**mercedes_okiebenz.com<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/<http://www.okiebenz.com/**archive/> >> <http://www.okiebenz.**com/archive/ <http://www.okiebenz.com/archive/>> >> >> To Unsubscribe or change delivery options go to: >> http://mail.okiebenz.com/****mailman/listinfo/mercedes_****okiebenz.com<http://mail.okiebenz.com/**mailman/listinfo/mercedes_**okiebenz.com> >> <http://mail.**okiebenz.com/mailman/listinfo/**mercedes_okiebenz.com<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/<http://www.okiebenz.com/archive/> > > To Unsubscribe or change delivery options go to: > http://mail.okiebenz.com/**mailman/listinfo/mercedes_**okiebenz.com<http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com> > -- Jaime Kopchinski http://www.jaimekop.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
