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Amsoil 2021 I6 turbo diesel

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tallseekr

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New to the firum and RAM trucks. I apologize in advance if this has been addressed in detail previously. Mine is the 2021 Ram 3500. Who has been using AMSOIL products in this truck for a while? Which of there products, and your experience.
Previous vehicle had the 2002 Cummins ISC 350.
 
I use Amsoil fluids everywhere (as the OEM stuff gets changed out)

Donaldson oil filter (used to be the same as the Amsoil, but not any more and it’s better than the current Amsoil)

Mopar/Fleetguard air and fuel filters

Engine Oil: ADO 5w-40
Trans/transfer case/PS: Signature Series ATF
Diffs: SVG 75w-90


I ran the signature series in my 18 to get “coverage” for 12 months over the OEM 6 month interval, but I really can’t justify it on the 22 when the cheapest oil is good for 12 months/15K miles and these engines aren’t known for lube issues.
 
AH64ID said:
I use Amsoil fluids everywhere (as the OEM stuff gets changed out)

Donaldson oil filter (used to be the same as the Amsoil, but not any more and it’s better than the current Amsoil)

Mopar/Fleetguard air and fuel filters

Engine Oil: ADO 5w-40
Trans/transfer case/PS: Signature Series ATF
Diffs: SVG 75w-40


I ran the signature series in my 18 to get “coverage” for 12 months over the OEM 6 month interval, but I really can’t justify it on the 22 when the cheapest oil is good for 12 months/15K miles and these engines aren’t known for lube issues.
Click to expand...
*75/140
 
AH64ID said:
I use Amsoil fluids everywhere (as the OEM stuff gets changed out)

Donaldson oil filter (used to be the same as the Amsoil, but not any more and it’s better than the current Amsoil)

Mopar/Fleetguard air and fuel filters

Engine Oil: ADO 5w-40
Trans/transfer case/PS: Signature Series ATF
Diffs: SVG 75w-40


I ran the signature series in my 18 to get “coverage” for 12 months over the OEM 6 month interval, but I really can’t justify it on the 22 when the cheapest oil is good for 12 months/15K miles and these engines aren’t known for lube issues.
Click to expand...
when i get the truck back, i need to do diff oil service. what amsoil oil do you suggest for that? I know on the page they break it down by axle type ect and i have no idea what i have in a 21 2500
 
oledirteh said:
when i get the truck back, i need to do diff oil service. what amsoil oil do you suggest for that? I know on the page they break it down by axle type ect and i have no idea what i have in a 21 2500
Click to expand...

All SRW trucks and SO DRW get 75w-90 front and rear

HO DRW gets 75w-90 up front and 75w-140 out back.

SVG is what I’d run in your truck
 
AH64ID said:
All SRW trucks and SO DRW get 75w-90 front and rear

HO DRW gets 75w-90 up front and 75w-140 out back.

SVG is what I’d run in your truck
Click to expand...

thanks sir, do they require any additives or anything? ill be putting in a order soon

this is what im looking at getting.


oil.JPG
 
Last edited:
I’ve had Amsoil in my 2022 high output since the first oil change.

Amsoil Signature Series Max Duty 10w30 Diesel
Fleetguard LF16035 or Donaldson DBL7349 filter

I typically change it between 10k and 13k, just depends on how many miles I rack up and when it’s most convenient for me. I use Polaris Labs for my oil analysis at every oil change. Results have been excellent.

No ticking sounds. Engine runs smooth and quiet.

I also have Amsoil severe gear ready to go into the differentials, and their signature multi vehicle atf for the transfer case.
 
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