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Jeep Wrangler YJ
YJ General Discussion
Safe for Yellow Metals GL-5
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<blockquote data-quote="deadpool1" data-source="post: 441153" data-attributes="member: 21229"><p>yes the manual is wrong, GL4 is it</p><p>but stores in town (brick) do not sell it now due to 99.99% of customer never change gear lube and drive an automatic box.</p><p>so stocking it is sill to them . for M/T</p><p>the Pennzoil yellow bottle marked Syncromess is GL4.</p><p>the bottles of all GL if marked API GL4 are in fact correctly</p><p>I <a href="https://www.walmart.com/ip/Super-Tech-Heavy-Duty-Tractor-Hydraulic-and-Transmission-Fluid-2-Gallons/16879814?athbdg=L1600&from=/search" target="_blank">run walmart Tractor oil GL4 in mine</a>, and works great. before this for ever mostly I run the Pennzoil, and before that all stores had GL4 but not now.</p><p>GL5 is Hypoid axle lube. only. for extreme pressure gear sets. not for syncrho mesh rings that want real GL4 and are tuned for GL4</p><p>the box is designed for the rings to run normal GF4 lub back 37 years ago. not Synthetics.</p><p>and running syn GL4 can in fact make the rings slip and now all gear dogs grind or balk ! so run DINO only lube. ok?</p><p>my sons JK has no brass syncro rings (i think carbon rings ) for SYN LUBE ONLY Jeep spec., so is not the same at all as any YJ></p><p></p><p>so your post as vast others post on line <strong> boils down to :</strong></p><p><strong><em><strong>who sells GL4.?</strong></em></strong></p><p>google is your friend</p><p>or go to NAPA and demand special order GL4.</p><p>warning many store clerks have no idea at all what GL4 is nor what a manual transmission might be, (at all) ask the guy with gray side burns, this.</p><p>in 1/2 a day most stores can get it to you , on to counter, no $15 shipping from 3000 miles away.</p><p></p><p>yes some brands of lube are listed GL4/5, I have one bottle here from 15 years ago. (</p><p>NAPA Gear oil by Ashland of KY, made.</p><p>API</p><p>GL4, GL4, GL3 on the rear.</p><p>GL3 is obsolete now and GL4 is its replacement.</p><p>not made now. this brand version.</p><p></p><p>demand GL4 in the store. even read the rear labels in the store or online at the store, read the rear labels.</p><p>look for API GL4 marks, BINGO</p></blockquote><p></p>
[QUOTE="deadpool1, post: 441153, member: 21229"] yes the manual is wrong, GL4 is it but stores in town (brick) do not sell it now due to 99.99% of customer never change gear lube and drive an automatic box. so stocking it is sill to them . for M/T the Pennzoil yellow bottle marked Syncromess is GL4. the bottles of all GL if marked API GL4 are in fact correctly I [URL='https://www.walmart.com/ip/Super-Tech-Heavy-Duty-Tractor-Hydraulic-and-Transmission-Fluid-2-Gallons/16879814?athbdg=L1600&from=/search']run walmart Tractor oil GL4 in mine[/URL], and works great. before this for ever mostly I run the Pennzoil, and before that all stores had GL4 but not now. GL5 is Hypoid axle lube. only. for extreme pressure gear sets. not for syncrho mesh rings that want real GL4 and are tuned for GL4 the box is designed for the rings to run normal GF4 lub back 37 years ago. not Synthetics. and running syn GL4 can in fact make the rings slip and now all gear dogs grind or balk ! so run DINO only lube. ok? my sons JK has no brass syncro rings (i think carbon rings ) for SYN LUBE ONLY Jeep spec., so is not the same at all as any YJ> so your post as vast others post on line [B] boils down to : [I][B]who sells GL4.?[/B][/I][/B] google is your friend or go to NAPA and demand special order GL4. warning many store clerks have no idea at all what GL4 is nor what a manual transmission might be, (at all) ask the guy with gray side burns, this. in 1/2 a day most stores can get it to you , on to counter, no $15 shipping from 3000 miles away. yes some brands of lube are listed GL4/5, I have one bottle here from 15 years ago. ( NAPA Gear oil by Ashland of KY, made. API GL4, GL4, GL3 on the rear. GL3 is obsolete now and GL4 is its replacement. not made now. this brand version. demand GL4 in the store. even read the rear labels in the store or online at the store, read the rear labels. look for API GL4 marks, BINGO [/QUOTE]
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Jeep Wrangler YJ
YJ General Discussion
Safe for Yellow Metals GL-5
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