Amsoil series 3000 HDD

[Vesta]

I have just received the below oil analysis. This year i have changed to the series 3000. I was using the series 2000, however i had issues with the thickening which is well known for this oil.
These results seem a lot better, from what i understand!
I will list both samples, for your comments.
Car is a Toyota Rav 4 2001. Changing oil only once a year. Running a Frantz oil bypass filter ( changed after oil samples results) Amsoil SDF filter changed at 6 months.
75,000kms 100,00kms
Metals PPM (Limit) Series 2000 5w-30, Series 3000 5w-30
Lead (45) 2, 1
Iron (90) 16, 15
Aluminium (40) 3, 3
Copper (30) 2, 1
Chromium (15) 0, 0
Tin (15) 0, 0
Nickel (15) 0, 0
Silver 0, 0
Titanium 0, 0
Contaminants
Silicon (30) 54, 34
Sodium (40) 43, 17
OIl Additives
Magnesium 805, 178
Zinc 1582, 1481
Molybdenum 2, 45
Calcium 1953, 2771
Phosphorus 1018, 1233
Boron 27, 7
Barium 2, 5
Physical Tests
TBN (12.2) 3.4, 8.3
Fuel dilution % 0, 0
Water % (0.1) Visc index 191, 169
Visc @ 100c (12) 15.96, 14.60
visc @ 40c (65) 90, 90
FTIR Analysis
Soot-abs (70) 4, 9
Glycol % (0.1) 0, 0
water PPM 0.24, 0
Oxidation-abs (45) 484, 45
Nitration-abs (45) 65, 44
sulphation-abs(45) 176, 41
Particle Analysis
PQ90Fe-mg\ltr (40) 0, 1
Comments
Silicon elevated, silicon is usually the result of dirt ingress. Check air intake system. Viscosity 40% above ISO standard. Oxidation elevated. Oxidation can lead to plugged filters , lacquering, piston deposits, ring sticking, bore polishing. Oxidation is accelerated by elevation of run temp, extended oil drain & blow by. Change oil & filters - clean \ replace air filters and ensure service intervals are not over extended.

So my question to the experts is, Is this result with this oil better than the last? Can i continue to use this or should i do a change?
Thanks for your help
Regards Vesta

 

[ARB1977]

How many miles between uses? Im currently using Amsoil Series 2000 in my Tacoma with a EAO34 filter only but once fall rolls around ill be switching over to Series 3000. The TBN looks awesome.

 

[Vesta]

25,oookms between changes

 

[TeeDub]

The silicon and sodium (salt spray) levels would indicate your air filter is still letting in too much dirt. Toyota engines leach lots of silicone sealant during the first 40,000km, but yours is well past that point.

I'd change this oil after another 5000km, due the silicon levels and the increased viscosity. The next batch of the S3000 you run should work even better. The wear pattern of this motor is very consistent, which is what I look for.

I'm surprised to see this much thickening in a four cylinder engine after only 15,000 miles of use, but it may be related to the particular operating conditions, including the fuel you're using.

TD

 

[Vesta]

TeeDub, You mention the amount of thickening in this oil? It does seen to perform better than the series 2000 which is well known for this problem. Main fuel used is e10 which is ethanol blended to 10%
Vesta

 

[JohnBrowning]

I am glad people are comeing around. I have been trying to convince people to use the S3K for well over two year now. It is so much better in almost everything then the S2K! It is insane how much better it holds up! Nice report overall!

 

[TeeDub]

Vesta,

The reason I mention the thickening is that I've run this oil for 15k and longer in a Toyota four cylinder engine and it didn't thicken nearly this much. I do think the 10% alcohol fuel probably has something to do with it. However I have not done enough controlled testing with these fuels to tell for sure.

It is my understanding that alcohol enhanced fuels are supposed to reduce the oxides of nitrogen (NOx) in the exhaust, which should minimize nitration in the crankcase oil. However their use MAY increase oxidation, which would result in more thickening of the lube.