Castrol 5W-20 in Toyota Highlander 9 000 km

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This is my 6th UOA from 0 to 59600 km in Toyota Highlander. You can see all results of different lubricants in one table. First OCI's shows big number of wear metalls and Si, but it is usual situation for new Toyota engine 2GR-FE. The lowest wear was with TGMO 0W-20 (lowest viscosity among oil oils) in summer period))).
VOA of Castrol is here
http://www.bobistheoilguy.com/forums/ubb...al_#Post3253660

Code:
Oils: 1-Factory fill oil 5W-30

2-TGMO 5W-40 SM

3-LUKOIL LUXE 5W-40 SN

4-TGMO 0W30 SL/CF

5-TGMO 0W-20 SN

6-Castrol Magnatec Professional E 5W-20



1 2 3 4 5 6



Km on oil 8 000 9 600 10 600 9 000 11 400 9 000

Km on Unit__8 000 19 700 30 200 39 200 50 600 59 600



KV100 9,03 11,86 11,78 10,1 7,91 8.23

KV40 58,6 72,34 69,27 55,72 38,99 43.67

VI 132 160 167 171 180 166

Ca 2222 2352 2571 3044 2272 1910

Mg 13 12 18 11 11 10

Zn 1022 913 1173 996 812 805

P 876 752 983 884 730 720

B 0 160 43 10 3 1

Mo 87 0 4 0 90 36

Sn 0 0 0 0 0 0

Pb 1 1 0 0 0

Cu 332 98 9 7 3 3

Fe 45 5* 20 16 11 19

Cr 1 0 0 1 0 1

Al 21 7 4 8 4 11

Si 243 65 25 19 16 16

Na 1 6 3 2 3 6

K 0 1 0 1 1 0

TBN 3,51 5,02 5,24 5,38 3,27 3,16

TAN 2,69 3,57 3,3 3,86 2,65 2,88



*- lab mistake IMO
 
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Originally Posted By: Danno
I would stick with TGMO 0W-20. Seems to work really well with your engine.

I agree. Now I am om 5W-30 ACEA A5/B5 full SAPS oil but next OCI will be on 0W-20. I will try another 0W-20 from the market, may be Mobil or Idemitsu.
 
Originally Posted By: DemoFly

I'm surprised the TBN is still so high after 5600 miles.


TBN retention of all oils in my engine

Code:
oil OCI,km TBN fresh oil TBN Used oil

ASTM D 2896 ASTM D4739 ASTM D4739

Toyota FF 5W-30 8 000 NA 6.36 (1) 3.51

TGMO 5W-40 9 600 10.2 NA 5.02

LUKOIL LUXE 5W-40 10 600 9.94 8.54 5.24

TGMO 0W-30 9 000 10.1 9.0 5.38

TGMO 0W-20 11 400 8.02 NA 3.27

Castrol 5W-20 9 000 8.83 6.48 3.16


all numbers were tested,
(1) - FF oil - sample from the engine after 200 km

2GR-FE is a good engine. It does not kill oil)))
 
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