Chevron Supreme 5w-30, 15185 miles, 1995 Geo Prizm 1.8 Liter 7AFE at 187,824
Summary:
Engine : Toyota 1.8L 7AFE
Filter : Purolator PremiumPlus L14476
Oil: Chevron Supreme 5w-30 SM-Grade
Sample Date: 09/24/08
Total Miles: 187,824 miles
Interval: 15,185 miles
Duration: 10/27/07-09/24/08 (~11 months)
Make-up Oil: 15 quarts
Blackstone Labs
This Sample / Vehicle Averages / Universal Averages
Aluminum 4 / 3 / 2
Chromium 1 / 1 / 1
Iron 21 / 10 / 7
Copper 4 / 4 / 4
Lead 1 / 1 / 2
Tin 0 / 0 / 0
Molybdenum 214 / 160 / 111
Nickel 0 / 0 / 0
Manganese 0 / 0 / 0
Silver 0 / 0 / 0
Titanium 0 / 0 / 0
Potassium 47 / 8 / 4
Boron 36 / 39 / 47
Silicon 10 / 5 / 7
Sodium 13 / 6 / 5
Calcium 2373 / 2433 / 2412
Magnesium 30 / 13 / 20
Phosphorus 790 / 750 / 747
Zinc 830 / 878 / 886
Barium 0 / 0 / 0
Viscosity-SUS 58.1 Should be 56-63 per Blackstone for this oil
Viscosity-cSt 9.68 Should be 9.1-11.3 per Blackstone
Flashpoint 380F Should be >365F per Blackstone
Fuel Antifreeze Positive
Water 0.0
Insolubles 0.7% FLAGGED
TBN: 2.8
Blackstone commented on coolant being present during this run, I had to change out my water pump a few hundred miles ago which is directly above the dipstick tube that had to come out and I must have got a little bit coolant in there. If that caused a little extra wear then these wear numbers are looking good to me. Consumption is remaining the same as it was during the last interval, I am still using my 59 cent/quart Chevron Supreme 5w30 but will likely raise the viscosity and run some high mileage oil next summer. The weather(from well below freezing last winter to the 90's of summer) and driving conditions(~90% highway) were in this interval, which included a 2,000 mile round trip to Toronto and back to the Minneapolis area of MN as part of this run. Consumption hasn't gotten worse than 1qt/1000 miles in this oil change, I think I will leave things alone as far as consumption concerns go. Iron is higher in this sample at 21ppm, moly is from the Chevron Supreme. I have no way of knowing whether or not the 21ppm change from my previous max of 12ppm of Iron is due to the longer run(last one was 6ppm at 10k) or from the coolant ingestion, which is what I am pretty sure it is the coolant causing this.
On a side note, the 2,000 mile round trip to Toronto had my 2 best tanks(one being 12.4 gallons out of the 13.2 gallon tank getting 530 miles) at 43mpg while traveling at the 70mph speed limit. The entire trip got me 40mpg+ for every tank. I'm also still running Pennzoil Syncromesh in the manual transmission which I just changed out along with this oil which has made winter shifting much nicer and possibly improved gas mileage too. I also just replaced my spark plugs at 189,470 yesterday which I ran for 45,137 miles which I forgot about and didn't realize it until I got a misfire on acceleration under high throttle at around 1500-2000 rpm, everything is fine with the new plugs. I'll post pics of the old plugs soon in a different thread.
Am I on track for another 15,000 mile run?
What do you guys think?
Summary:
Engine : Toyota 1.8L 7AFE
Filter : Purolator PremiumPlus L14476
Oil: Chevron Supreme 5w-30 SM-Grade
Sample Date: 09/24/08
Total Miles: 187,824 miles
Interval: 15,185 miles
Duration: 10/27/07-09/24/08 (~11 months)
Make-up Oil: 15 quarts
Blackstone Labs
This Sample / Vehicle Averages / Universal Averages
Aluminum 4 / 3 / 2
Chromium 1 / 1 / 1
Iron 21 / 10 / 7
Copper 4 / 4 / 4
Lead 1 / 1 / 2
Tin 0 / 0 / 0
Molybdenum 214 / 160 / 111
Nickel 0 / 0 / 0
Manganese 0 / 0 / 0
Silver 0 / 0 / 0
Titanium 0 / 0 / 0
Potassium 47 / 8 / 4
Boron 36 / 39 / 47
Silicon 10 / 5 / 7
Sodium 13 / 6 / 5
Calcium 2373 / 2433 / 2412
Magnesium 30 / 13 / 20
Phosphorus 790 / 750 / 747
Zinc 830 / 878 / 886
Barium 0 / 0 / 0
Viscosity-SUS 58.1 Should be 56-63 per Blackstone for this oil
Viscosity-cSt 9.68 Should be 9.1-11.3 per Blackstone
Flashpoint 380F Should be >365F per Blackstone
Fuel Antifreeze Positive
Water 0.0
Insolubles 0.7% FLAGGED
TBN: 2.8
Blackstone commented on coolant being present during this run, I had to change out my water pump a few hundred miles ago which is directly above the dipstick tube that had to come out and I must have got a little bit coolant in there. If that caused a little extra wear then these wear numbers are looking good to me. Consumption is remaining the same as it was during the last interval, I am still using my 59 cent/quart Chevron Supreme 5w30 but will likely raise the viscosity and run some high mileage oil next summer. The weather(from well below freezing last winter to the 90's of summer) and driving conditions(~90% highway) were in this interval, which included a 2,000 mile round trip to Toronto and back to the Minneapolis area of MN as part of this run. Consumption hasn't gotten worse than 1qt/1000 miles in this oil change, I think I will leave things alone as far as consumption concerns go. Iron is higher in this sample at 21ppm, moly is from the Chevron Supreme. I have no way of knowing whether or not the 21ppm change from my previous max of 12ppm of Iron is due to the longer run(last one was 6ppm at 10k) or from the coolant ingestion, which is what I am pretty sure it is the coolant causing this.
On a side note, the 2,000 mile round trip to Toronto had my 2 best tanks(one being 12.4 gallons out of the 13.2 gallon tank getting 530 miles) at 43mpg while traveling at the 70mph speed limit. The entire trip got me 40mpg+ for every tank. I'm also still running Pennzoil Syncromesh in the manual transmission which I just changed out along with this oil which has made winter shifting much nicer and possibly improved gas mileage too. I also just replaced my spark plugs at 189,470 yesterday which I ran for 45,137 miles which I forgot about and didn't realize it until I got a misfire on acceleration under high throttle at around 1500-2000 rpm, everything is fine with the new plugs. I'll post pics of the old plugs soon in a different thread.
Am I on track for another 15,000 mile run?
What do you guys think?
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