As previously discussed, We have had many people who feel that a mineral oil cannot produce as good a wear #'s as a synth and therefore not do that well in extending drains. My thoughts as many know is that wear protection rely on the additive package more than the base oil. Because some will take and move from a standard mineral based oil and switch to a synth, and this produces better results with them, the argument I have with this is that when switching, how many actually are switching brands of oils therefore actually switching complete additive packages.
So point is, was it the "synth base oil" that reduced the wear or was it the "different additive package" that made the difference?
So to somewhat but not conclude scientificly my point, I have been running the Schaeffers blend which many know that there is approx 20-25% PAO synth base stock in this oil.
My 2 tests previously with the blend all had the M1 filters. The last test reported here is on the cheapest Fram filter. Driving conditions were approx the same for the last two 4,000 mile drains. This is on a 1.9L ford 4cyl engine in a 95 escort wagon.
[ March 06, 2004, 01:37 PM: Message edited by: BOBISTHEOILGUY ]
So point is, was it the "synth base oil" that reduced the wear or was it the "different additive package" that made the difference?
So to somewhat but not conclude scientificly my point, I have been running the Schaeffers blend which many know that there is approx 20-25% PAO synth base stock in this oil.
My 2 tests previously with the blend all had the M1 filters. The last test reported here is on the cheapest Fram filter. Driving conditions were approx the same for the last two 4,000 mile drains. This is on a 1.9L ford 4cyl engine in a 95 escort wagon.
Now understand that all of these are schaeffers oils and that the main difference between each is the first 2 are blends and the last is the moly bond mineral which is the same as the blend with minimal additive differences and no pao. The mineral is the same base mineral stock used in the blend.code:
[ M1 filter ] Fram filter
blend blend molybond
miles 10,500 4,022 4,000
Wear Metals
copper 10 19 8
iron 30 17 12
chrom 0 0 0
alum 2 2 2
lead 18 36 2
Additives
moly 121 114 99
phos 1146 709 937
zinc 1260 906 1017
magnesum 14 9 9
calc 3587 2976 2809
Contaminants
silicon 7 7 3
%antifreeze,fuel,%h20 all 0
Oil Properties
Vsic 16.65 12.81 14.49
50w 40w 40w
sulfur 4 45 15
oxidation 32 21 13
nitration 35 20 14
soot 0 0 0
[/code]
[ March 06, 2004, 01:37 PM: Message edited by: BOBISTHEOILGUY ]