1996 Ford Explorer - 4.0L V6
127,000 total miles
4,800 miles on this oil
No make-up oil
PureOne oil filter
First column is the UOA/second column is universal averages:
aluminum 2/4
chronium 1/1
iron 33/16
copper 2/6
lead 1/3
tin 1/1
molybdenum 210/55
nickel 0/0
manganeses 0/1
silver 0/0
titanium 0/0
potassium 72/2
boron 3/52
silicon 29/9
sodium 27/11
calcium 2746/2087
magnesium 14/171
phosphorus 703/731
zinc 833/875
barium 0/1
Test values:
SUS visc: 59.6 should be: 56-63
Flashpoint: 360 should be: 365
fuel: .5 should be: antifreeze: positive
water: zero
insolubles: .2 should be:
History: This vehicle belongs to my neighbor. She had the heads replaced at 121k miles due to a cracked head at the number three cylinder. New head gaskets were installed, as well as new plugs and a PCV valve. The independent shop that did the work initially thought that the intake manifold gasket went bad, but upon testing, found them to be okay.
I told the owner to have them change the oil and run it 1k miles to "rinse" the engine. She did so, changing it out after 1.2K miles to MaxLife full syn 5w30. She ran this oil 4.8k miles/seven months. She was going to perform two Auto-Rx "wash and rinse cycles," but I suggested she UOA this sample prior to pouring in the Auto-Rx. Good thing she did, huh?
I cannot believe that after 6k total miles after new heads, that there would be any "residual" coolant left over. What clinches it is the iron reading. Does that not indicate coolant in a cylinder?
This repair is under a 12 month/12k mile warranty. I told her to take it back to the shop. I'm guessing that they failed to properly torque the heads, the head gasket went bad, one of the heads was bad from the shop, or her intake manifold gasket went south. She's concerned they'll claim it's the intake manifold gaskets and want big $$ for another repair.
Any constructive thoughts, gentlemen?
[ June 08, 2006, 01:38 PM: Message edited by: dkryan ]
127,000 total miles
4,800 miles on this oil
No make-up oil
PureOne oil filter
First column is the UOA/second column is universal averages:
aluminum 2/4
chronium 1/1
iron 33/16
copper 2/6
lead 1/3
tin 1/1
molybdenum 210/55
nickel 0/0
manganeses 0/1
silver 0/0
titanium 0/0
potassium 72/2
boron 3/52
silicon 29/9
sodium 27/11
calcium 2746/2087
magnesium 14/171
phosphorus 703/731
zinc 833/875
barium 0/1
Test values:
SUS visc: 59.6 should be: 56-63
Flashpoint: 360 should be: 365
fuel: .5 should be: antifreeze: positive
water: zero
insolubles: .2 should be:
History: This vehicle belongs to my neighbor. She had the heads replaced at 121k miles due to a cracked head at the number three cylinder. New head gaskets were installed, as well as new plugs and a PCV valve. The independent shop that did the work initially thought that the intake manifold gasket went bad, but upon testing, found them to be okay.
I told the owner to have them change the oil and run it 1k miles to "rinse" the engine. She did so, changing it out after 1.2K miles to MaxLife full syn 5w30. She ran this oil 4.8k miles/seven months. She was going to perform two Auto-Rx "wash and rinse cycles," but I suggested she UOA this sample prior to pouring in the Auto-Rx. Good thing she did, huh?
I cannot believe that after 6k total miles after new heads, that there would be any "residual" coolant left over. What clinches it is the iron reading. Does that not indicate coolant in a cylinder?
This repair is under a 12 month/12k mile warranty. I told her to take it back to the shop. I'm guessing that they failed to properly torque the heads, the head gasket went bad, one of the heads was bad from the shop, or her intake manifold gasket went south. She's concerned they'll claim it's the intake manifold gaskets and want big $$ for another repair.
Any constructive thoughts, gentlemen?
[ June 08, 2006, 01:38 PM: Message edited by: dkryan ]
