IAT vs milage (HO)

From : fmb

Q: anyone have any experience adding either a quart of 30w or a quart of atf to each tank of dieselengine is a 2003 5.9l ho. i did this for years on a 93 ford 7.3 diesel it really helped the injector pump run quieter plus there was less stalling. all this came about when the government mandated de-sulphurized diesel for environmental reasons thus robbing the diesel fuel of a lot of slickum. at the time ford recommended adding a pint of some majic stuff they had to each tank of diesel but it cost about $4 a shot so not many takers. operators of long haul transport were routinely adding atf to their diesel fuel so i tried it. worked great. .