2007年8月15日 · All these trucks designed in 1949 were intended for GL1...and most old farm tractor shops still stock 5 gallon pails of it... Use of the newer variations with "brass" additives and other hooplah are just wasted money... However the new yuppie diehards can spend their easy gotten moolah for the higher GL#s without breaking their toys.

2008年5月13日 · That said, does the gov still use GL1 in the trans/ transfer case or do they use GL5 with the MT1 rating? Just to be safe I'm going to drain trans/ transfer and refill with GL5 as I dont like tempting fate ( or Murphy) GL5 is about $35 for 5 gal here so its not that big a deal, what does the well respected SS members think?

2010年2月11日 · Hi Jon, That is interesting data.... I have learned something new. But I don't think it means that 50wt motor oil or a 50wt "transmission oil" are interchangeable with SAE 80/90 gear oil.... The additive package would be different, with the SAE 90 having viscosity modifiers and extreme pressure...

2010年2月11日 · I don't like GL-1 gear oil and wanted something "better" in my transfer case and transmission. GL-1 is hard to find, and finding one with a corrosion inhibitor is even harder! So I called my local HD truck driveline shop, Blumenthal's. They gave me the tech support phone number to Meritor...

2005年1月20日 · 65201 1 gal napa gl1 . Reactions: vegansbane, Merc1973 and plym49. Feb 9, 2012 #17 joshs1ofakindxj

2007年3月18日 · Hey, Have any of y'all used the Napa 90W GL1 gear oil in your diffs or t-case? I found a good price on some in the 5 gallon pail at my local store. It might be a little thick for a tranny in winter, but I would think it would be OK for diffs or t …

2011年3月21日 · Use a good GL-5/MT-1 (that's the actual label). Most, if not all gear lubes are 'yellow metal' safe. The 80/90 wt oils don't get hot enough to make the acids (combination of water, sulfur and heat).

2007年12月31日 · Gents, I've searched a bit and printed out the appropriate pages from the TM 9-2320-361-20 for adjusting the clutch.

2013年3月29日 · Edit: GL1 works and is low cost. MT-1 is the spec to look for to be certain of "yellow metal" compatibility.

2012年7月5日 · That is helpful but it did not really say if GL1 will work or not. I will probably go with the NAPA GL1 for the trans and transfer case. GL5 is fine for the diffs right? I have not seen anything about them having yellow metal.