This is a daily driver, commuter, car pooler, and general beater. I've decided to use it as a test mule for various oils.
I've submitted a couple of analysis on it previously (5K and 8K miles). This time I went 10K on the oil and the filter had 19K on it as I did not change it last oil change.
Castrol Syntec 5W30 was on sale so I put that in it for this go 'round and will run that 10K miles as well. Next will be Penzoil Platinum.
The comments are kind of odd from Blackstone. Last time I went 8K miles and the Lead was 14 and they told me to try 10K miles. This time at 10K miles the lead was 18 and they say no more than 7500 miles.
I have sent in samples from this 1999 Accord, a 2001 Accord V6 as well as a 2002 Supercharged Toyota 4Runner. ALL showed high lead (21 and 8 respectively). I'm beginning to wonder if Castrol GTX isn't up to snuff. All three vehicles were Castrol GTX 10W30.
Without further ado, here's the current analysis:
1999 Honda Accord 4cyl 2.3L EX Auto
Oil: Castrol GTX 10W30
Filter: Purolator PureOne PL14459 (19K miles on filter)
Blackstone was the lab used.
This sample had about 6 months of time on the oil, 10,330 miles. No makeup oil added. Vehicle has 125,453 miles on the clock. It did seem to use about 1qt of oil, but stayed in the safe zone so I didn't add any makeup oil so that I wouldn't contaminate the results.
I suspected a coolant leak as the reservoir seem to loose about 8oz. I notice no leaks on the ground and have marked the coolant reservoir so I can keep an eye on it.
COMMENTS:
When we suspect coolant contamination is a possibility we look for high potassium and sodium. Unfortunately, some oils use sodium as an additive, which is the case with Castrol. You can see that potassium was low so we don't think that the coolant that you lost is getting into the oil. We'll be sure to keep an eye on both next time, though. Lead increased here and is likely due to the longer oil run. This shows excess wear at the bearings so we suggest no more than ~7,500 miles on the next oil. The TBN was low at 1.6 so you had little active additive left.
ELEMENTS IN PARTS PER MILLION
Aluminum: 4
Chromium: 1
Iron: 11
Copper: 3
Lead: 18
Tin: 0
Molybdenum: 5
Nickel: 1
Manganese: 0
Silver: 0
Titanium: 0
Potassium: 2
Boron: 2
Silicon: 13
Sodium: 166
Calcium: 2473
Magnesium: 9
Phosphorus: 625
Zinc: 817
Barium: 0
PROPERTIES:
SUS Viscosity @210*F: 64.2
cSt Viscosity @ 100*C: 11.40
Fuel %: Antifreeze %: 0.0
Water %: 0.0
Insolubles %: 0.3
TBN: 1.6
I've submitted a couple of analysis on it previously (5K and 8K miles). This time I went 10K on the oil and the filter had 19K on it as I did not change it last oil change.
Castrol Syntec 5W30 was on sale so I put that in it for this go 'round and will run that 10K miles as well. Next will be Penzoil Platinum.
The comments are kind of odd from Blackstone. Last time I went 8K miles and the Lead was 14 and they told me to try 10K miles. This time at 10K miles the lead was 18 and they say no more than 7500 miles.
I have sent in samples from this 1999 Accord, a 2001 Accord V6 as well as a 2002 Supercharged Toyota 4Runner. ALL showed high lead (21 and 8 respectively). I'm beginning to wonder if Castrol GTX isn't up to snuff. All three vehicles were Castrol GTX 10W30.
Without further ado, here's the current analysis:
1999 Honda Accord 4cyl 2.3L EX Auto
Oil: Castrol GTX 10W30
Filter: Purolator PureOne PL14459 (19K miles on filter)
Blackstone was the lab used.
This sample had about 6 months of time on the oil, 10,330 miles. No makeup oil added. Vehicle has 125,453 miles on the clock. It did seem to use about 1qt of oil, but stayed in the safe zone so I didn't add any makeup oil so that I wouldn't contaminate the results.
I suspected a coolant leak as the reservoir seem to loose about 8oz. I notice no leaks on the ground and have marked the coolant reservoir so I can keep an eye on it.
COMMENTS:
When we suspect coolant contamination is a possibility we look for high potassium and sodium. Unfortunately, some oils use sodium as an additive, which is the case with Castrol. You can see that potassium was low so we don't think that the coolant that you lost is getting into the oil. We'll be sure to keep an eye on both next time, though. Lead increased here and is likely due to the longer oil run. This shows excess wear at the bearings so we suggest no more than ~7,500 miles on the next oil. The TBN was low at 1.6 so you had little active additive left.
ELEMENTS IN PARTS PER MILLION
Aluminum: 4
Chromium: 1
Iron: 11
Copper: 3
Lead: 18
Tin: 0
Molybdenum: 5
Nickel: 1
Manganese: 0
Silver: 0
Titanium: 0
Potassium: 2
Boron: 2
Silicon: 13
Sodium: 166
Calcium: 2473
Magnesium: 9
Phosphorus: 625
Zinc: 817
Barium: 0
PROPERTIES:
SUS Viscosity @210*F: 64.2
cSt Viscosity @ 100*C: 11.40
Fuel %: Antifreeze %: 0.0
Water %: 0.0
Insolubles %: 0.3
TBN: 1.6
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