Greetings, long time visitor here, first post, and for that matter, my first UOA. We bought a shiny new gas-powered Mazda6 in October, now with 2,500 miles. Did the first oil change after break-in at 1500. Checked the oil the other day and it was about a quart high and smelled badly of gas so I changed the oil ASAP and sent a sample to Blackstone. I think the dealer overfilled it at the last change, but not that much.
Results are back - fuel % at 4.8% with only 828 miles on this oil change. We're in Wisconsin and had a long stretch of sub-freezing weather, and the car is pretty frequently driven short distances, but if this is normal for a direct injected car in a northern climate there's a problem. Car has no indication of any malfunction, gets 38mpg on the highway and otherwise we're really happy with it. But I'm guessing that the fuel % will result in reduced engine longevity.
I'll call Mazda on Monday. Being an engineer, I'd like to get in touch with somebody technical, as opposed to working with a service writer at the local dealer, but have no clue how to do that.
Here's the results:
OIL Mazda 0W20
MILES IN USE 828
MILES 2,517
SAMPLE TAKEN 3/20/14
ALUMINUM 5
CHROMIUM 0
IRON 8
COPPER 10
LEAD 0
TIN 1
MOLYBDENUM 164
NICKEL 0
MANGANESE 1
SILVER 1
TITANIUM 0
POTASSIUM 1
BORON 89
SILICON 16
SODIUM 2
CALCIUM 896
MAGNESIUM 1175
PHOSPHORUS 696
ZINC 812
BARIUM 3
INSOLUBLES 0.1
WATER 0
FLASHPOINT ºF 290
SUS VIS 210ºF 45.6
cSt @ 212ºF 5.92
Opinions, suggestions, pointers welcome.
Jim
Results are back - fuel % at 4.8% with only 828 miles on this oil change. We're in Wisconsin and had a long stretch of sub-freezing weather, and the car is pretty frequently driven short distances, but if this is normal for a direct injected car in a northern climate there's a problem. Car has no indication of any malfunction, gets 38mpg on the highway and otherwise we're really happy with it. But I'm guessing that the fuel % will result in reduced engine longevity.
I'll call Mazda on Monday. Being an engineer, I'd like to get in touch with somebody technical, as opposed to working with a service writer at the local dealer, but have no clue how to do that.
Here's the results:
OIL Mazda 0W20
MILES IN USE 828
MILES 2,517
SAMPLE TAKEN 3/20/14
ALUMINUM 5
CHROMIUM 0
IRON 8
COPPER 10
LEAD 0
TIN 1
MOLYBDENUM 164
NICKEL 0
MANGANESE 1
SILVER 1
TITANIUM 0
POTASSIUM 1
BORON 89
SILICON 16
SODIUM 2
CALCIUM 896
MAGNESIUM 1175
PHOSPHORUS 696
ZINC 812
BARIUM 3
INSOLUBLES 0.1
WATER 0
FLASHPOINT ºF 290
SUS VIS 210ºF 45.6
cSt @ 212ºF 5.92
Opinions, suggestions, pointers welcome.
Jim