Original thread on future/current oil viscosity selection can be found here:
https://bobistheoilguy.com/forums/ubbthr...Oil#Post4520299
Essentially this is the UOA I got from the Mobil 1 5w20 which is the recommended viscosity for the stock Coyote 5L engine in the '16 Mustang GTs. The oil had about 1,500 miles on it, but as described in the above post the engine has a much higher output at this point.
Code:
Oil Analyzers Inc.
Date Sampled 10/04/2017
Date Received 10/12/2017
Miles Used 1,500
Miles Engine 5,424
Lube Changed Yes
Filter Changed Yes
Fuel Dilution
Soot
Water
Viscosity @100C 7.8cSt
Base Number 3.20mg KOH/g
Oxidation 9abs/cm
Nitration 9abs/0.1mm
Iron 16
Chromium 0
Nickel 0
Aluminum 4
Copper 6
Lead 33
Tin 0
Cadmium 0
Silver 0
Vanadium 0
Silicon 11
Sodium 4
Potassium 7
Titanium 0
Molybdenum 78
Antimony 0
Manganese 101
Lithium 0
Boron 71
Magnesium 728
Calcium 1077
Barium 0
Phosphorus 724
Zinc 771
Notes from lab:
Quote:
Flagged data does not indicate an immediate need for maintenance action. Continue to observe the trend and monitor equipment and fluid conditions. LEAD is at a MODERATE LEVEL and may be OVERLAY METAL from MAIN/ROD BEARINGS; or; Lead possibly from solder; Base Number is SLIGHTLY LOW. As Base Number depletes, the ability to neutralize acids is diminished. MANGANESE is at a MINOR LEVEL; Manganese sources in unleaded gasoline engines include manganese/bronze valve guides and/or an additive added to the fuel; Lubricant and filter change acknowledged. Your note was taken into consideration. Report has been regenerated.
From the report I'm pretty glad I'm going to thicker 10w40 oil since this stuff is pretty low viscosity at just 1,500 miles from the abuse of the supercharged engine.
Lead is a concern, but it's possible it came from the bottom of my fuel barrel since I run a blend of race/pump gas. I use unleaded race gas, but it's not the first time this barrel has been used. I thought I'd see copper with the lead if it was from bearings. Any thoughts?
The manganese is almost certainly from the unleaded race fuel.
I've got a second report coming from Blackstone Labs to compare. Will be interesting if it's the same or not.
https://bobistheoilguy.com/forums/ubbthr...Oil#Post4520299
Essentially this is the UOA I got from the Mobil 1 5w20 which is the recommended viscosity for the stock Coyote 5L engine in the '16 Mustang GTs. The oil had about 1,500 miles on it, but as described in the above post the engine has a much higher output at this point.
Code:
Oil Analyzers Inc.
Date Sampled 10/04/2017
Date Received 10/12/2017
Miles Used 1,500
Miles Engine 5,424
Lube Changed Yes
Filter Changed Yes
Fuel Dilution
Soot
Water
Viscosity @100C 7.8cSt
Base Number 3.20mg KOH/g
Oxidation 9abs/cm
Nitration 9abs/0.1mm
Iron 16
Chromium 0
Nickel 0
Aluminum 4
Copper 6
Lead 33
Tin 0
Cadmium 0
Silver 0
Vanadium 0
Silicon 11
Sodium 4
Potassium 7
Titanium 0
Molybdenum 78
Antimony 0
Manganese 101
Lithium 0
Boron 71
Magnesium 728
Calcium 1077
Barium 0
Phosphorus 724
Zinc 771
Notes from lab:
Quote:
Flagged data does not indicate an immediate need for maintenance action. Continue to observe the trend and monitor equipment and fluid conditions. LEAD is at a MODERATE LEVEL and may be OVERLAY METAL from MAIN/ROD BEARINGS; or; Lead possibly from solder; Base Number is SLIGHTLY LOW. As Base Number depletes, the ability to neutralize acids is diminished. MANGANESE is at a MINOR LEVEL; Manganese sources in unleaded gasoline engines include manganese/bronze valve guides and/or an additive added to the fuel; Lubricant and filter change acknowledged. Your note was taken into consideration. Report has been regenerated.
From the report I'm pretty glad I'm going to thicker 10w40 oil since this stuff is pretty low viscosity at just 1,500 miles from the abuse of the supercharged engine.
Lead is a concern, but it's possible it came from the bottom of my fuel barrel since I run a blend of race/pump gas. I use unleaded race gas, but it's not the first time this barrel has been used. I thought I'd see copper with the lead if it was from bearings. Any thoughts?
The manganese is almost certainly from the unleaded race fuel.
I've got a second report coming from Blackstone Labs to compare. Will be interesting if it's the same or not.
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