I'm planning on changing out the diff oil in my '06 G35 coupe that has a VLSD. I can't find the recommended 80W-90 in a synthetic but the local Amsoil dealer can bring in some of their 80w-90. Any experiences with the Amsoil gear oil and is it worth the money?
Amsoil Gear Oil
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Originally Posted By: mb32
I'm planning on changing out the diff oil in my '06 G35 coupe that has a VLSD. I can't find the recommended 80W-90 in a synthetic but the local Amsoil dealer can bring in some of their 80w-90. Any experiences with the Amsoil gear oil and is it worth the money?
well worth the money. Amsoil gear oils are usually priced about the same as M1 and other syns. IMO Amsoil has the best gear lubes on the market.
Also you can run a 75w90 in that differential as well if you would like.
I'm planning on changing out the diff oil in my '06 G35 coupe that has a VLSD. I can't find the recommended 80W-90 in a synthetic but the local Amsoil dealer can bring in some of their 80w-90. Any experiences with the Amsoil gear oil and is it worth the money?
well worth the money. Amsoil gear oils are usually priced about the same as M1 and other syns. IMO Amsoil has the best gear lubes on the market.
Also you can run a 75w90 in that differential as well if you would like.
I don't see where a more commonly available synthetic 75W-90 gear oil wouldn't work well in anything calling for 80W-90?
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Amsoil gear oil is all I ever use. I'm using that exact gear oil in my Nissan rear diff (see sig,Amsoil AGL). If you were going to slightly deviate from FSM spec,go with Amsoil Severe Gear 75W110 (which is what I'll use next drain/fill).
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Originally Posted By: aquariuscsm
Amsoil gear oil is all I ever use. I'm using that exact gear oil in my Nissan rear diff (see sig,Amsoil AGL). If you were going to slightly deviate from FSM spec,go with Amsoil Severe Gear 75W110 (which is what I'll use next drain/fill).
Why would a higher grade and/or sever gear be warranted?
Amsoil gear oil is all I ever use. I'm using that exact gear oil in my Nissan rear diff (see sig,Amsoil AGL). If you were going to slightly deviate from FSM spec,go with Amsoil Severe Gear 75W110 (which is what I'll use next drain/fill).
Why would a higher grade and/or sever gear be warranted?
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Originally Posted By: gathermewool
Originally Posted By: aquariuscsm
Amsoil gear oil is all I ever use. I'm using that exact gear oil in my Nissan rear diff (see sig,Amsoil AGL). If you were going to slightly deviate from FSM spec,go with Amsoil Severe Gear 75W110 (which is what I'll use next drain/fill).
Why would a higher grade and/or sever gear be warranted?
Not really sure. Amsoil's lube match recommends it for my car as an alternative:
1996 Nissan 300ZX
Standard Differential, Rear......GL-5
30 To 100 F......90
SEVERE GEAR 75W-90 Synthetic EP Lubricant (SVGQT)
75W-90 Synthetic Long Life Gear Lube (FGRQT)
SEVERE GEAR 75W-110 Synthetic EP Lubricant (SVTQT)
SAE 80W-90 Synthetic Gear Lube (AGLQT)
2006 Infinity G35:
Differential, Rear......GL-5
Below 100 F......80W-90
SAE 80W-90 Synthetic Gear Lube (AGLQT)
SEVERE GEAR 75W-90 Synthetic EP Lubricant (SVGQT)
75W-90 Synthetic Long Life Gear Lube (FGRQT)
SEVERE GEAR 75W-110 Synthetic EP Lubricant (SVTQT)
Originally Posted By: aquariuscsm
Amsoil gear oil is all I ever use. I'm using that exact gear oil in my Nissan rear diff (see sig,Amsoil AGL). If you were going to slightly deviate from FSM spec,go with Amsoil Severe Gear 75W110 (which is what I'll use next drain/fill).
Why would a higher grade and/or sever gear be warranted?
Not really sure. Amsoil's lube match recommends it for my car as an alternative:
1996 Nissan 300ZX
Standard Differential, Rear......GL-5
30 To 100 F......90
SEVERE GEAR 75W-90 Synthetic EP Lubricant (SVGQT)
75W-90 Synthetic Long Life Gear Lube (FGRQT)
SEVERE GEAR 75W-110 Synthetic EP Lubricant (SVTQT)
SAE 80W-90 Synthetic Gear Lube (AGLQT)
2006 Infinity G35:
Differential, Rear......GL-5
Below 100 F......80W-90
SAE 80W-90 Synthetic Gear Lube (AGLQT)
SEVERE GEAR 75W-90 Synthetic EP Lubricant (SVGQT)
75W-90 Synthetic Long Life Gear Lube (FGRQT)
SEVERE GEAR 75W-110 Synthetic EP Lubricant (SVTQT)
The 75w90 would be better if your climate is cold.
https://bobistheoilguy.com/forums/ubbthreads.php/topics/3668958/See_what_happens_when_wrong_oi
https://bobistheoilguy.com/forums/ubbthreads.php/topics/3668958/See_what_happens_when_wrong_oi
I've used their gear lube for years towing a 6000 lb boat. Great lube at a competitive price.
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I'd use any GL5 synthetic 75w90 or 75w110, which opens up any and all brands available locally to you.
"Severe Gear" is the name of the product. It is an excellent gear oil.
Higher grade in a diff will usually protect better. SAE90's and 80w90's were thicker before the SAE J-spec rewrite and is where some of the 75w110's fit in now.
SAE old J306
SAE 90 13.5-24cst
SAE 140 24-41cst
New J306
SAE 90 13.-18.5cst
SAE 110 19.5-24cst
SAE 140 24-32.5cst
"Severe Gear" is the name of the product. It is an excellent gear oil.
Higher grade in a diff will usually protect better. SAE90's and 80w90's were thicker before the SAE J-spec rewrite and is where some of the 75w110's fit in now.
SAE old J306
SAE 90 13.5-24cst
SAE 140 24-41cst
New J306
SAE 90 13.-18.5cst
SAE 110 19.5-24cst
SAE 140 24-32.5cst
Just use any 75w90 and u are good to go. Any 80w90 would be fine too
Thanks for the info everyone. I ended up going with the 80w-90 Amsoil. The price did end up being the same as other synthetics such as M1, Royal Purple etc. The winters where I am usually don't go below -10 to -15 celsius so I should be okay with the thicker grade.
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Originally Posted By: mb32
Thanks for the info everyone. I ended up going with the 80w-90 Amsoil. The price did end up being the same as other synthetics such as M1, Royal Purple etc. The winters where I am usually don't go below -10 to -15 celsius so I should be okay with the thicker grade.
Good choice!
Thanks for the info everyone. I ended up going with the 80w-90 Amsoil. The price did end up being the same as other synthetics such as M1, Royal Purple etc. The winters where I am usually don't go below -10 to -15 celsius so I should be okay with the thicker grade.
Good choice!
It's good stuff. I can't attest that it is any better than Mobil 1 or the other makes, but I use it and also do a regular amount of heavy towing. I have observed that after a lot of towing, both seem to pour out thinner--- Mobil 1 seems to come out thinner than amsoil, but that is purely subjective.
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