Subject	If the Motul is GL4 for manuals it is ok. Multi rated >>
Posted by	ZUL8TR on November 09, 2018 at 9:40 AM
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In Reply To	Gear oils: Any reason to switch? posted by cherry on November 07, 2018 at 04:12 PM
Message	gear oil like GL2 thru GL5 are downward compatible ONLY for rear ends that were originally spec'd for lower GL ratings and can usually (if no brass internals) use GL5 (straight from Mobil tech department). If the multi rated container specifies for GL4 manual trannys then ok to use. I have tried several gear oils in my 5 speed like: Redline MT90, Valvoline 75w 90, Amsoil 75W 90, Mobil 1 75w 90 and all gave shift me problems. Until I contacted the oil tech department as noted and got the correct meaning of the GL multi rating. I finally settled on Royal Purple Synerloc 75w 90, it is rated for GL4 manuals and GL5 rear ends. I have been using it for 7 years now and runs great for my tranny. . Manual trannys can be finicky like women ;-) ZUL8TR
Follow Ups	Gear oils: Any reason to switch? - cherry 16:12:14 11/07/18 I've been super happy with Redline MT-85 in my trans - Polish 18:57:21 11/07/18 Interesting the Redline site does not recommended it >>> - ZUL8TR 09:41:33 11/09/18 That is strange, not sure why, it is GL4 rated. I've been ru - Polish 12:02:13 11/09/18 Like I said below trannys are different yours likes the M85 (n/m) - ZUL8TR 14:02:12 11/09/18 FWIW MT-90 is the correct weight as spec'd by Nissan. - Bernie (NoVA) 12:23:48 11/09/18 Got it. Do you think the 350Z and Z32 trans are similar - Polish 15:59:54 11/09/18 I have the Nissan 75w85 in my transmission, it feels fine. (n/m) - Bernie (NoVA) 22:18:12 11/09/18 This. (n/m) - MixManMash 05:43:55 11/10/18 Thanks, I'm going to try it next time (n/m) - Polish 17:03:00 11/10/18 I use the Nissan stuff. Smooth, no grinding. (n/m) - MixManMash 07:09:45 11/08/18 name said advancements over the past 10 yrs plz (n/m) - LJZTT 16:25:34 11/08/18 I realized after posting that my sense of the passage - cherry 17:15:11 11/08/18 but oils have gone from SM to SN Plus. Not insignificant. (n/m) - not4resaleZ 07:17:56 11/09/18 The gear oil uses the GLx rating system not the S_ rating>> - ZUL8TR 09:46:30 11/09/18 I wonder what they will use when they have a gear set - not4resaleZ 11:27:08 11/09/18 Magical unicorn pee. (n/m) - MixManMash 05:42:10 11/10/18 looks like Dexron with spin on filter...drive one ?? (n/m) - not4resaleZ 21:40:50 11/10/18 I was more curious about tangible difference between today - LJZTT 13:17:32 11/09/18 If the Motul is GL4 for manuals it is ok. Multi rated >> - ZUL8TR 09:40:13 11/09/18 Wasn’t it Royal Purple Max-Gear 75W90 you were recommending? (n/m) - Inzane 23:43:57 11/13/18 Yes same stuff as noted in my post above I just didn't >> - ZUL8TR 13:28:43 11/15/18 Been using Lightweight Shockproof for years ...... - zx299 00:21:31 11/11/18
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