quote:
Originally posted by MolaKule:
In some cases I make my own esters with raw materials because it's cheaper and because purchased finished products are way too expensive for low volume production.
Need partners to create the company and start commercial production ? I'm ready. Anybody else ?
The offer is valid until Monday, then all others just shareholders !
quote:
I think GC has some some esters, but no where near the level of Redline nor are they the same type. I think GC is using a relatively old formula that Pennzoil used some time ago:
1. Two synthetsized hydrocarbon oils - PAO's and alkylated naphthalenes/benzenes
2. Some 2-ethylhexyl adipate (di-ester)
3. Improved additive package
For such thoughts about M1 SS and GC some guys almost excommunicated me from our BITOG church !
Hope you have some info on Motul 300V and would help with the following questions:
1). What can be the reason of quite low Flash Point (COC) and Shear Stability Index of 300V ? The use of some "cheap" esters ? Interesting that according to CEC L-14-A-93 test 300V oils are less shear stable then 8100 or 6100, but the real engine tests show completely different picture.
2). Why do esters oils (namely Motul) usually exibit 1.5 times higher corrosivity then PAO and 2.0 times higher then mineral oils ?
................... 300V 15W-50 ... 10W-40 ... 8100 0W-40 ... 6100 5W-40
Shear stability ......... 4,3 % ..... 8,5 % ....... 1,5 % ........... 1,8 %
HT/HS .................... 5,4 ........ 3,93 ......... 3,66 ............. 3,57
NOACK .................... 8,3 ........ 6,0 ........... 9,8 .............. 11,1
Flash point .............. 218 ........ 236 .......... 226 .............. 228
0W-40 : Esters + some amount of PAO.
5W-40 : PAO + some amount of gr.III & Esters
It's also difficult to understand what Motul has changed in formulations and why, but until 2000-2002 Flash Points and NOACK were different:
15W-50 232 and 4,0 %
10W-40 218 and 6,5 %
The density of oils have been changed too.
TYI.