Originally Posted By: mongo161
I noticed this ATF on Amazon.
http://www.amazon.com/Mag-Synthetic-Multi-Vehicle-Automatic-Tra Mag1 Full Synthetic ATF nsmission/dp/B007VWYMUY/ref=sr_1_6?s=automotive&ie=UTF8&qid=1357618858&sr=1-6&keywords=Mag+1+full+synthetic
Since wpp or wne lost the wal-mart (supertech) account or at least parts of it. They had to sell their products somewhere and Mag 1 is their house brand. No ads , low overhead. Its supertech re-formulsted in a new bottle. Always been decent products . I wouldn't hesitate to use it.just make sure it meets specs for your vehicle.
Amazon review
Mag 1 62555 Full Synthetic Multi-Vehicle Automatic Transmission Fluid - 1 Quart, (Pack of 6) (Automotive)
I have used this fluid in several cars and it performs very well for its intended applications.
You may read another review on here touting that this fluid doesn't meet the Dexron VI requirement.
Of course not, Dexron VI is a lower viscosity fluid and while it is backwards compatible to Dexron III transmissions it can result in lower pressure levels in a worn unit.
Dexron VI is designed for the newer low drag transmissions that GM began using around 2006 it was specificallty designed in regard to issues found with Dexron III in the 6L80E unit. The 6L80E uses direct clutch on clutch (no buffer or steel plate) shifting. This makes the trans more efficient, but also causes alot of wear on the fluid.
Dexron VI is similar to Ford's Mercon SP specification.
________________________________________Fluid listed here:___________Dexron VI Fluid:
Inspection Data
Spfc Gravity @ 60°F_____ASTM D4052______0.8516_______________________0.8477
Viscosity @ 40°C cSt____ASTM D445_______33.85________________________30.94
Viscosity @ 100°C cSt___ASTM D445_______7.498________________________6.16
Pour Point °C (°F)______ASTM D5950______-51°C (-60°F)________________-51°C (-60°F)
Viscosity Index_________ASTM D2270______199__________________________152
Color___________________ASTM D1500______Red__________________________Red
Rust Protection_________ASTM D665A______Pass_________________________Pass
Gravity, °API___________ASTM D287_______34.66________________________35.42
Brookfield Visco________ASTM D2983______9,800________________________12,200
Copper Strip Corrosion__ASTM D130_______1B___________________________1B
As you can see they are similar, but the Dexron VI is a much thinner fluid. A 1.3 point change may not sound like much, but it makes for a about a 25% thinner fluid.
Nothing wrong with either fluid, just different specifications. While this fluid may meet the wear and durability requirements , you cannot simultaneously meet Dexron III and Dexron VI the viscosity specifications are too far apart.
