Castrol GTX 5W30 4,115 miles 1999 TransAm

Joined
Jun 22, 2019
Messages
3
Location
Houston, TX
It's been awhile since I last posted. I drive the SUV too much.
SQL Query
CASTROL GTX     10w30    10w30     10w30    10w30    10w30   5w30    
MILES IN USE    3.0k     2.5k      3.2k     3.6k     3.3k    4.0k
MILES           45k      75k       81.5k    108k     144k    155k
SAMPLE TAKEN    2/03/01  11/16/02  5/23/03  6/26/05  6/10/12 05/10/19 

ALUMINUM        5        3         5        4        5         4
CHROMIUM        1        0         1        1        1         0
IRON            6        3         10       6        14        7
COPPER          15       5         11       4        22        9
LEAD            5        3         6        14       24        1       
TIN             1        1         1        2        0         0
MOLYBDENUM      88       124       60       78       6         83      
NICKEL          0        0         1        1        1         1       
MANGANESE       0        0         1        0        1         0
SILVER          0        0         0        0        0         0
TITANIUM        0        0         0        0        0         1
POTASSIUM       0        0         0        2        3         0 
BORON           14       38        10       3        3         137
SILICON         7        6         9        13       16        12
SODIUM          1        1         3        2        177       29
CALCIUM         1617     1991      2115     2160     1974      2969
MAGNESIUM       262      15        9        9        11        35
PHOSPHORUS      696      708       846      644      696       790
ZINC            847      942       1010     771      831       955
BARIUM          0        0         0        0        0         0
     
INSOLUBLES      0.5      0.3       0.5      0.3      0.4       0.2
WATER           0        0         0        0        0         0
FLASHPOINT F    365      385       380      405      415       415
SUS VIS 210F    61.3     66.5      57.3     60.7     61.6      58.2
cSt VIS 100C    10.58    12.01     9.44     10.41    10.68     9.70
FUEL %          0.5      <0.5      <0.5     <0.5     <0.5      <.05
ANTIFREEZE %    0.0      0.0       0.0      0.0      0.0       0.0
 
Joined
Sep 23, 2018
Messages
861
Location
Maryland
What happened with the Sodium between the previous sample and this one? Did you find a root cause for that 177 spike?
 

Pavi

Thread starter
Joined
Jun 22, 2019
Messages
3
Location
Houston, TX
Originally Posted by RayCJ
What happened with the Sodium between the previous sample and this one? Did you find a root cause for that 177 spike?
Not sure. I did change from 10w40 to 5w30 after the next to last sample. As you can see I have not driven it much in the last seven years. The roads around me have been under major reconstruction for the last five or six years so I put the abuse on the SUV. I am going to do another sample around 3,000 miles.
 
Last edited:

Pavi

Thread starter
Joined
Jun 22, 2019
Messages
3
Location
Houston, TX
Originally Posted by Linctex
Yikes! What oil was in the previous time??
Oil has always been Castrol GTX, only difference was 10W40 then switche to 5W30. At the time of the high lead numbers, I was running Auto Cross several times a month and driving in rush hour traffic. The last seven years has been only Saturdays and Sundays.
 
Joined
Aug 2, 2018
Messages
1,206
Location
PA
Looks like the more Moly, the better your engine does. Maybe try a QSUD or Idemitsu run.
 
Last edited:
Top