First Time Oil Anaylsis.....opinions

[CCiatteo]

I am looking for opinions from others on the results of my oil analysis. I have been doing alot of reading about oils, the CI-4plus vs. CJ ratings, extended drain intervals, by-pass filtration etc. So on my last oil change I figured I'd get a baseline as to where my engine is at.

Background info (truck and mods in sig):
Valvoline Premium Blue 15/40 since I have owned it (last 15,000 mi) changed at 5000 mi intervals using a K/N filter (only one I could find consistently). I generally run empty and don't tow anything significant. I am averaging 17-20 miles per gallon and go anywhere from 470 miles to 540 miles on a load of fuel.

Goals:
In an effort to save a little cash (not the main motivation really), save some time (fewer oil changes), and extend the life of the motor (main goal) I am looking into going with by-pass system and making the jump to a sythentic oil.

Oil Report (from Oil Analyzers Inc):
Oil had 5586 miles on it.

10 iron
1 chromium
0 lead
1 copper
0 tin
2 aluminum
0 nickel
0 silver
10 silicon
45 boron
0 sodium
927 magnesium
2512 calcium
0 barium
1289 phosphorus
1619 zinc
56 molybedenum
0 titanium
0 vandadium
0 potassium

<1 %Fuel

n/a VIS @40C cSt

12.84 VIS @100C cSt

0% water

0.1% soot/solids (by volume)

no coolant

9.22 TBN

Oil analyzers saw no problems and made no recommendations. So I guess all is well. I checked their website for ranges and everything looked good to me, but I was looking for some confirmation of that before I start extending my intervals.

I did change the oil and the crankcase currently has amsoil syn 15/40 heavy duty marine/diesel with their filter. So at the 5000 mile mark I'll test again and see what they say. But at least at that point I'll have something to compare against.

Thanks