Compression Ignition Addict
Join Date: Jul 2011
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I was using on until I read some articles that changed my mind, one being that Brian from BTS doesn't recommend using them. I changed my fluid every 16,000 miles because I tow alot, so I'm not going to give the fluid enough time too get dirty. Magnafine does recommend something like 12,000 mile intervals.
Some of the later years of the 4R100 had a Magnafine filter from the factory. They actually have the Ford logo on the body of the filter. Mine is the 1/2" version for less restriction and the have a built in pressure bypass if it gets clogged.
Ford no longer uses or recommends them.
when I got my HD4R100 installed, one was not installed. I thought the dealer that installed it screwed up and was BSing me about them not using them anymore (it was on the install instructions for these transmissions at one point). I spoke with someone at Ford Customer Service and they confirmed that they no longer used or recommended them. Their reason was that people did not realize they were there or they never bothered changing them and they would eventually clog, causing the transmission fluid flow to use the by-pass line with an end result of overheating.
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2001 Ford F-250 SD CCSB 7.3 PSD - AIS Intake, Zoodad,
MBRP 4" XP Series Exhaust w/ Muffler, HD4R100, 26 row Trans Cooler, Fumoto Valve,
285/75R16E BFG AT KO, Pioneer AVIC-Z130BT Nav, BOYO VLT-422C Back Up Camera,
Scangauge II, Glowshift 3 Gauge Pod (EGT,TFT,Boost), PHP FU Chip, Huskyliners, Huskyliner Mud Flaps, Warn Premium Hubs, Riffraff Boots/Clamps/inserts
Dyno'd at Mo's Speed Shop 11/3/12 - 307rwhp / 651rw ft-lbs <<<--- On PHP 120Race tune