New oil to try

[Dvldog8793]

Howdy
I am trying out the Amsoil 20w50. It is a newer product from them with a diesel rating.
I am trying it in my 1996 6.5 that has the typical low oil pressure syndrome and my daughters 1998 6.5 that is pretty normal. On first try I gained 5-7 PSI (factory gauge) on the 1996 and about 10 psi on the 1998.
The 1996 would normally run 20 at hot idle and MAYBE get to 30 on the road, now it is at 25-30 hot idle and 35-40 road!
I did also change the ops on the 1996 so that may have had something to with it.
Anyways just putting it out there that there is another option that might help the low psi of some engines.
Also if you are into extended drain intervals this might be a good option.
Hope this helps!

[Robyn]

The hot oil pressure on the squirt blocks (Even the new AMG ones) is down right scarry.

The old Dahoooooley runs about 40--45 down the road cold and then about 30 maybe hot, and the pressure at idle is enough to make you cringe.

10 is about what the dash gauge shows.

I would love to see 20 at a hot idle and 50 down the road.

If I could go back and do it over easily I would use the non squirt bearings on all but the rear one, and just squirt cylinders 7 and 8

This would benefit the hot cylinders and get some oil pressure up.

Even just dropping the squirt from the front 2 would help.

Those 8 big leaks really lose a lot of oil.

[Dvldog8793]

An update about the oil. I am planning on using the Amsoil 20-50 diesel oil in my 1996 exclusively. It runs at a better oil pressure and also my oil temp seems to be down a few degrees. I had no starting problems in the winter. I gain oil pressure and this oil is also a zinc rich. I am a big believer in ZDDP :D
So it might cost a little more but for the amount of miles I put on this truck(7-10k per year) I think the benefits are good enough.
It is not listed in the amsoil catalog under diesel oils so you have to search under 20w50 to find it.

[rustyk]

Many of you know I'm a recovering fuels and lubes engineer. I'm skeptical of Amzoil's specs/claims. Three of us have had diffy issues after using Amzoil gear lubes. While engine oil is much different, Amzoil's claims about its motor oils are a bit tenuous, IMHO.

[Dvldog8793]

About nine years ago I was pretty skeptical of amsoil and was using only Mobil products. I got a good deal on some amsoil grease and thought I would try it. I noticed a difference. This was in trailer bearings and the grease was a racing product. I have been gradually trying more of their products and am pretty much switched over to all amsoil with the exception of some engine oils. I have engines that like other stuff better. I am not an engineer but I use what seems to work best for me. I have never had an issue with any amsoil gear lubes be it in diffs or gear boxes. I have a couple of diffs with well over 200k and they look great. I am not trying to sell any product but just sharing my experience with the new oil that they are offering.;)

[56pan]

The hot oil pressure on the squirt blocks (Even the new AMG ones) is down right scarry.

The old Dahoooooley runs about 40--45 down the road cold and then about 30 maybe hot, and the pressure at idle is enough to make you cringe.

10 is about what the dash gauge shows.

I would love to see 20 at a hot idle and 50 down the road.

If I could go back and do it over easily I would use the non squirt bearings on all but the rear one, and just squirt cylinders 7 and 8

This would benefit the hot cylinders and get some oil pressure up.

Even just dropping the squirt from the front 2 would help.

Those 8 big leaks really lose a lot of oil.

I'm confused by this, ma'am. I thought the squirter 6.5 blocks had a higher flow oil pump? And that the fittings for the oil cooler on the block were larger i.d. to handle that flow. Long story, but I had a squirter block 6.5 installed in my '93 C2500 several years ago that had a non-squirter oil pump on it. And, yeah, the hot oil pressure was bad scary. I put the correct higher flow pump on it and it has always held higher hot oil pressure than my previous non-squirter engine. Surely the new AMG engines have the correct oil pump installed?