Car '02 Honda Si
Motor K20A3
Oil change intervals
0 - 5,000 OEM oil
5,000 - 10,000 Valoline 5W/30
10,000 Exxon 5W/20
15,000 Exxon 5W/20
20,000 7/7/03 Exxon 5W/20 (Tested)
29,793 12/03/03 Exxon 5W/20
34,573 02/13/04 Exxon 5W/20 (Tested)
39,998 05/31/04 Exxon 5W/20 (Tested)
44,992 08/07/04 Exxon 5W/20
56,429 01/08/05 Exxon 5W/20
61,243 05/05/05 Exxon 5W/20 (Tested)
Oil Filter: Bosch
Lab: Blackstone (all 4 UOAs)
This is the fourth analysis on this car, newest one is on the right side.
Latest commute is 18 miles in 20-25 minutes, other then that it's your average daily driver. Avg mpg over fill was 29.7.
The red flag is the sodium that went through the roof. Haven’t added any anti-freeze, but then again I never checked it before today. On a cold engine the radiator is plum full and the expansion tank is a half inch below the min line. Hope the recipe changed over the last year.
Motor K20A3
Oil change intervals
0 - 5,000 OEM oil
5,000 - 10,000 Valoline 5W/30
10,000 Exxon 5W/20
15,000 Exxon 5W/20
20,000 7/7/03 Exxon 5W/20 (Tested)
29,793 12/03/03 Exxon 5W/20
34,573 02/13/04 Exxon 5W/20 (Tested)
39,998 05/31/04 Exxon 5W/20 (Tested)
44,992 08/07/04 Exxon 5W/20
56,429 01/08/05 Exxon 5W/20
61,243 05/05/05 Exxon 5W/20 (Tested)
Oil Filter: Bosch
Lab: Blackstone (all 4 UOAs)
This is the fourth analysis on this car, newest one is on the right side.
Latest commute is 18 miles in 20-25 minutes, other then that it's your average daily driver. Avg mpg over fill was 29.7.
The red flag is the sodium that went through the roof. Haven’t added any anti-freeze, but then again I never checked it before today. On a cold engine the radiator is plum full and the expansion tank is a half inch below the min line. Hope the recipe changed over the last year.
code:
Date 7/7/03 2/13/04 5/31/04 5/5/05
Miles on Car 20,000 34,573 39,998 61,243
Miles on Oil....5000 ..4780 ...5425 ...4814
Makeup Oil ......0.5 .....0 ......0 ......0
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Elements
Aluminum ......... 4 .....5 ......4 ......3
Chromium ......... 0 .....0 ......0 ......0
Iron ............. 8 .....7 ......6 ......5
Copper ........... 5 .....3 ......4 ......2
Lead ............. 1 .....0 ......1 ......1
Tin .............. 0 .....0 ......0 ......0
Molybdenum ..... 230 ...224 ....226 ....180
Nickel ........... 0 .....0 ......0 ......0
Manganese ........ 0 .....0 ......0 ......0
Silver ........... 0 .....0 ......0 ......0
Titanium ......... 0 .....0 ......0 ......0
Potassium ........ 0 .....0 ......0 ......0
Boron ........... 50 ....60 .....49 .....45
Silicon ......... 11 .....8 ......9 ......8
-
Sodium ........... 4 .....3 ......2 ....186
-
Calcium ....... 2254 ..2052 ...2222 ...1898
Magnesium ........ 6 .....8 ......6 ......7
Phosphorus ..... 842 ...740 ....791 ....755
Zinc ........... 960 ...892 ...1102 ....927
Barium ........ 0 .....0 ......0 ......1
--
TBN ............ 2.1 ...3.3 ....N/A ....N/A
Viscosity @ 210F 49.7 52.3 49.5 50.4
Flashpoint ..... 375 ...330 ....400 ....395
Insolubles% .... 0.4 ...0.3 ....0.3 ....0.2
Fuel ..............0 ..1.8% ...0.5% ...0.5%