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#5209 - 08/06/21 05:52 PM
Re: Teammate BobB DCT Fluid Blackstone Results
[Re: teamzr1]
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Joined: Dec 2000
Posts: 5,854
teamzr1
Owner - Pays the bills
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Owner - Pays the bills
Lives in Engine Bay

Joined: Dec 2000
Posts: 5,854
America
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Testlab explains the makeup of findings
Averages: Both the universal and unit averages are running averages and change with the number of samples we analyze.
Elements: Elements are quantified in the oil at parts per million levels (PPM). This list shows the most common sources of the elements in manual or automatic transmission oil. Following each element is a description of where it comes from. They are grouped by category.
Wear Metals
Aluminum: Housing, bearings, oil pump, gear and vane pumps Chromium: Ball and roller bearings, alloy of steel parts like gears Iron: Gears, bearings, shafts, some cases, clutch plates Copper: Bronze bushings, oil cooler oxides, clutch plates, brass fittings Lead: Residual gear marking compound, alloy of bronze Tin: Some bearing cages, alloy of bronze Nickel: Clutch bands, gear/shaft steel alloy Silver: Some soft friction bearings, Allison needle bearings Manganese: Alloy of steel Titanium: Trace wear metal
Contaminants
Potassium: Antifreeze Sodium: Antifreeze, additive in some engine oils Silicon: Airborne dirt, sealers, gaskets, sand-casted parts, and spray lubricants, antifreeze
Oil Additives
Boron Calcium Magnesium Phosphorus Zinc Barium
Physical properties
Viscosity/Flashpoint: If a contaminant is present in the oil, the Viscosity and Flashpoint will often be lower than stated in the “Values Should Be” line. A viscosity reading high or low may show oil oxidation.
Antifreeze %: Indicates the amount of antifreeze found in the oil. A question mark means we found possible traces of coolant, but not enough to definitively say it’s there.
Water %: Indicates the amount of water found in the oil. Insolubles %: Insolubles are solid materials present in the oil. They are typically free carbon from the oxidation of the oil itself, and accumulated metal in the system.
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#5258 - 08/27/21 08:37 PM
Re: Teammate BobB DCT Fluid Blackstone Results
[Re: teamzr1]
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Joined: Dec 2000
Posts: 5,854
teamzr1
Owner - Pays the bills
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Owner - Pays the bills
Lives in Engine Bay

Joined: Dec 2000
Posts: 5,854
America
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GM DCT service manual flush process :
There are two procedures that must be performed before and after changing the DCT filter. And the level check procedure is correct as well.
Before changing the filter: Quote: Hydraulic System Flush Procedure Diagnostic Instructions
• Perform the Diagnostic System Check prior to using this diagnostic procedure: Diagnostic System Check - Vehicle • Review the description of Strategy Based Diagnosis: Strategy Based Diagnosis
Description This procedure is used to flush the transmission fluid through the filtration system before a repair is performed that may have been caused by debris in the fluid.
The following will occur when the scan tool control is enabled: Engine Speed = 2,000 RPM & Line Pressure = Increase — For 8 min When to Perform the Procedure Note: Do NOT perform this procedure unless directed here from another procedure.
Perform this procedure before servicing the component: T12 Automatic Transmission Conditions for Running the Procedure • DTCs related to the following system/component = Not Set o K71 Transmission Control Module o T12 Automatic Transmission • Brake Pedal = Applied • Engine = Running • Transmission Fluid Temperature Sensor = Warmer than 50°C (122°F) • Transmission Range = P or N • Vehicle Speed = 0 km/h (0 MPH) Reference Information Scan Tool Reference Control Module References With Scan Tool Note: Do NOT perform this procedure unless directed here from another procedure. 1. Ignition » On / Vehicle » In Service Mode 2. Select: Module Diagnostics 3. Select: K71 Transmission Control Module 4. Select: Configuration/Reset Functions 5. Select: Hydraulic System Flush Procedure 6. Follow the instructions on the scan tool. The procedure will complete within 8 min Repair Instructions Perform the Diagnostic Repair Verification after completing the repair: Diagnostic Repair Verification After the filter change: Quote: Hydraulic System Leak Test Diagnostic Instructions • Perform the Diagnostic System Check prior to using this diagnostic procedure: Diagnostic System Check - Vehicle • Review the description of Strategy Based Diagnosis: Strategy Based Diagnosis
Description This procedure is used to test the transmission for leaks after a repair.
The following will occur when the scan tool control is enabled: Engine Speed = 2,000 RPM & Line Pressure = Increase — For 1 min When to Perform the Procedure Note: Do NOT perform this procedure unless directed here from another procedure.
Perform this procedure when the following component has been serviced: T12 Automatic Transmission Conditions for Running the Procedure • DTCs related to the following system/component = Not Set o K71 Transmission Control Module o T12 Automatic Transmission • Engine = Running • Transmission Fluid Temperature Sensor = Warmer than 50°C (122°F) • Transmission Range = P or N • Vehicle Speed = 0 km/h (0 MPH) Reference Information Scan Tool Reference Control Module References With Scan Too Note: Do NOT perform this procedure unless directed here from another procedure. 1. Ignition » On / Vehicle » In Service Mode 2. Select: Module Diagnostics 3. Select: K71 Transmission Control Module 4. Select: Configuration/Reset Functions 5. Select: Hydraulic System Leak Test 6. Follow the instructions on the scan tool. The procedure will complete within 1 min Repair Instructions Perform the Diagnostic Repair Verification after completing the repair: Diagnostic Repair Verification Fluid level check:
Quote: Transmission Fluid Level and Condition Check Fluid Level Check Procedure Warning: The transmission fluid level must be checked when the transmission fluid temperature (TFT) is between 20–40°C (68–104°F). If the TFT is not within this range, either idle or brake torque the vehicle to raise the fluid temperature, or shut off the vehicle to allow the fluid to cool as required. Setting the fluid level with a TFT outside this range will result in either an under or over-filled transmission.
TFT greater than 40°C=under-filled, TFT less than 20°C=over-filled. An under-filled transmission will cause premature component wear or damage. An over-filled transmission will cause fluid to discharge out the vent tube, possibly causing a fire that may result in serious bodily injury or severe vehicle damage, fluid foaming, or pump cavitation.
1. Start and idle the engine with the A/C turned off. 2. Run the vehicle for 3 to 5 minutes while selecting drive and reverse to fill the clutch circuits. To properly fill the circuits, place foot on brake, shift into drive for 30 to 45 seconds then shift into reverse for 30 to 45 seconds then repeat. 3. Stop the engine and perform the following actions within 5 minutes after stopping the engine. 4. Raise the vehicle on a hoist. The vehicle must be level with the shift selector in PARK range. Lifting and Jacking the Vehicle 5. Note: To avoid rounding of the transmission oil filler plug, it is recommended using an appropriate 6 point metric socket or wrenches.
Caution: Use Fuchs TITAN EG FFL-4 TREMEC transmission fluid only. Failure to use the proper fluid may result in transmission internal damage.
Note: 6. During transmission manufacturing, the fluid is filled by volume and therefore, it could have a fluid level that is approximately 13 mm (0.5 in) below the transmission oil filler plug. 7. If more than 1 liter (1.06 quarts) of fluid drains from the transmission, the transmission may have been previously filled for track use. 8. Note: To avoid rounding of the transmission oil filler plug, it is recommended using an appropriate 6 point metric socket or wrenches. 9. Place a suitable drain pan under transmission. 10. Transmission Oil Filler Plug (1) » Remove — Transmission Oil Filler or Drain Plug Replacement 11. Fill or drain oil until oil level is at the bottom edge of the fill opening. 12. Transmission Oil Filler Plug (1) » Install — Transmission Oil Filler or Drain Plug Replacement
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