UnleashedBeast
Engine Lubrication Guru
Damnit now I have to buy some.
Might as well sign up as a preferred customer and get anything you buy from Amsoil at dealer/wholesale cost.
Preferred Customer
Damnit now I have to buy some.
MTG is my fluid of choice for the MT82
However, do not buy the crappy pump from advanced auto zone. It sucks. :/
Pump pump pump pump pump pump pump pump pump pump pump pump pump pump pump pump pump pump pump pump pump pump pump pump
I know what you mean about the pump. Ironically.....my favorite pump to use is easily found at Wal Mart. I use it for everything lubrication replacement.
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http://www.mustang50magazine.com/te...ford_mustang_gt_50_coyote_engine/viewall.html
Engine oil is still used to hold the cam phasers in position. Wondering if using a thinner oil has any negatives effects on this.
When I spoke to two calibration engineers (one Ford and another Ford Racing) who worked on the 5.0L engine in the BOSS and BOSS 302R, I was told not to deviate from the factory recommended oil viscosity. They said that if you deviate much from the factory recommended viscosity, the TiVCT system would struggle to find its sweet spot, if you will, and the engine will be down in power a few HP/trq. The new CTA (camshaft-torque activated) VCT system still sorta relies on viscosity via flow rate in and out of the intake/exhaust orifices of the CTA VCT actuators.
Please keep in mind that the Mustang V6 and GT have different oil viscosity recommendations than the BOSS 302 and BOSS 302S/R (5w-20 vs. 5w-50). The BOSS (RoadRunner) calibration, of course, is not the same as the GT (Coyote).
That is the nuttiest thing I have ever heard. I have had my car on the dyno with 5-20 and 10-30....there was 0 difference in power.
Z
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When I spoke to two calibration engineers (one Ford and another Ford Racing) who worked on the 5.0L engine in the BOSS and BOSS 302R, I was told not to deviate from the factory recommended oil viscosity. They said that if you deviate much from the factory recommended viscosity, the TiVCT system would struggle to find its sweet spot, if you will, and the engine will be down in power a few HP/trq. The new CTA (camshaft-torque activated) VCT system still sorta relies on viscosity via flow rate in and out of the intake/exhaust orifices of the CTA VCT actuators.
Please keep in mind that the Mustang V6 and GT have different oil viscosity recommendations than the BOSS 302 and BOSS 302S/R (5w-20 vs. 5w-50). The BOSS (RoadRunner) calibration, of course, is not the same as the GT (Coyote).
More on topic with this thread, I have had MTL in for 7,000+ miles now and shifting is much better than the XT-M5-QS. Shift quality immediately improved after switching over. Shifting then got better a little bit more through the first 1,000 miles of use and then kinda plateaued.
^this!
Not to mention, the recommended lubricant for the Boss, Motorcraft 5W-50, shears to a light 40 grade/heavy 30 grade after 2,000 miles. What then? A Boss owners begins to have engine trouble because the oil has sheared from 19.9 cSt @ 100*F down to 12.5 to 13.5 cSt @ 100*F?
I think not.
19.9 cSt @ 100*F down to 12.5 to 13.5 cSt @ 100*F
19.9 cSt @ 100*C down to 12.5 to 13.5 cSt @ 100*C
That is the nuttiest thing I have ever heard. I have had my car on the dyno with 5-20 and 10-30....there was 0 difference in power.
Z
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Got any data to back this up?
I'm not saying your wrong, it's just that the internet can be a place with too little objective/factual backing. Plus, I'd like to see what is and what really isn't. I didn't work on the calibration, nor was I around to see anything that was done, so what I was told is just that - what I was told.

We are talking trans oil, not engine. Take that shit to a new thread.
I've got Amsoil on the way. RP didn't change one thing.
