What oil is in your NV4500?

[LarryB]

I'm just curious what everyone else is running.

 

[radixr]

Hey, Sled Puller, I just put you in front (5 votes to 4)!Oo. Oo. Oo.

 

[illflem]

Isn't Castrol the same as whatever the dealer/Dodge put in?

 

[jolyman]

I've been running the RED LINE MT 90.



It is doing great here in Colorado this winter although it is NOT



very cold this year. Shifts well.

 

[baby.driver]

Castrol Syntech GL5/MT1

 

[LarryB]

Originally posted by illflem

Isn't Castrol the same as whatever the dealer/Dodge put in?

I don't think so Bill, that would be "whatever the dealer/Dodge was supposed to put in?".



"Whatever the dealer/Dodge put in" is really the same as "I don't know".

 

[TSielski]

Running the Amsoil Ser 2000 75w-90 now, but took an interesting path getting there.

Ran the Castrol for a year after converting the truck to a 5-speed. Shifted great, no cold weather shifting issues. Was very surprised to see the tremendous amount of little glittering metallic particles in the drained Castrol though. This after one year, no towing, what I consider mildly modified. Never seen this much apparent, though anecdotal, evidence of wear in a trans fluid.

Chose the Redline MT-90 as a maintenance fill (1/3 the price of Castrol) at this time. No cold weather (doesn't really get that cold here) issues, but shifted notchy compared to the Castrol. Not unliveable, but notchy.

After 6 months of this, drained the Redline, and saw the same evidence of glittering particles in the oil.

Re-filled with Amsoil 80w-90 GL-4. Butter-like shifting in warm weather. Was really surprised. As weather turned colder, even low 30's at night would render the trans extremely difficult to shift, and getting the oil warm enough to shift decently took too long IMO. So after about 4 months, drained the 80w-90 GL-4 Amsoil, which had virtually none of the particles mentioned above BTW, and re-filled with some Castrol I still had to get thru the winter.

In the spring tried the series 2000, 75w-90 Amsoil with good results. Good shifting, no notchiness, and cold weather performance is good. Changed the series 2000 after a year and replaced it with more. Again no evidence of the metallic particles in the drained oil.

I have the trans plumbed with a temp sender and I did not notice any significant differences in trans temps with any of the oils. Again no towing. Sustained highway speeds of over 70 would generate temps of around 150 in the summer with any of the lubricants.

I'm not an Amsoil-kind of guy (DELO in the engine), but I'll give credit where it's due.

Apologize for the long post.



~tim

 

[Bob Beauchaine]

Pennzoil GL4 full synthetic. At the first chang I added a transmission filter - shifts great - a lot better than the Getrag!