Ok Here Goes "which Syn Oil To Use"

[Boczech1]

Search turned up somebody closer to you:



Schaeffer Manufacturing | Dealer Locator



Country Equipment 1010 Capenter Road

Lovelock, NV 89419 (775) 273-1177

 

[MAllen1]

I've been using 15w-40 Amsoil full synthetic since I had 20,000 on my 99. I've got 230,000 on it now and had the valves looked at and got the oil sampled. When I picked up the truck after the mechanic "adjusted" the valves---he laughed at me. He said that the valves were fine and I spent my money for nothing. When I got the oil sample back, in a round about way they said the same thing about the oil, said I could go another 5000 on the oil (I've had it in there for 12000) At this rate I guess I can hit the 450000 mile mark (if the rest of the truck can hold up) before I have to worry about getting another truck.

 

[mberry]

Search turned up somebody closer to you:

Schaeffer Manufacturing | Dealer Locator

Country Equipment 1010 Capenter Road
Lovelock, NV 89419 (775) 273-1177

I haven't had any luck getting them to call me back and let me know if they have it in stock. That and they are about 80 miles from me.

 

[Boczech1]

mberry sent you a PM

 

[DeezelDood]

Amsoilman (Wayne):

I'm not currently an Amsoil user but I am always impressed with the way you

support your points, and aid members, with good data. You also promote Amsoil without pushing it. Amsoil products, and the many supporters of them in TDR, speak for themselves. I may one day switch to Amsoil, pretty much based on your input. Thanks.

 

[cArNiVaLwOrKeR]

I just switched to amsoil w/25k on the new Block and so far so good...



JoeLee

 

[Vaughn MacKenzie]

On my 2001 HO I did 20,000 mile OCIs and sampled every 10k (once at oil change and one midpoint sample). I tried both Amsoil and Delvac. The Delvac 1 and Amsoil had very similar wear numbers for the first 10,000 miles, but by the 20,000 mile mark the Delvac was showing signs of fatigue (vis dropped and wear numbers went up quite a bit) whereas the Amsoil stayed flat, showed no sign of degradation. It was clear to me the Amsoil would hold up better for extended drain intervals.

I'm going to try an attachment, fingers crossed. Its a text file to reduce size, so the charts are useless. Full article is in issue 57.

I thought it was pretty well established this oil analysis article had some real limitations and shouldn't be used as the only means to determine the best oil to use.

 

[DeezelDood]

On my 2001 HO I did 20,000 mile OCIs and sampled every 10k (once at oil change and one midpoint sample). I tried both Amsoil and Delvac. The Delvac 1 and Amsoil had very similar wear numbers for the first 10,000 miles, but by the 20,000 mile mark the Delvac was showing signs of fatigue (vis dropped and wear numbers went up quite a bit) whereas the Amsoil stayed flat, showed no sign of degradation. It was clear to me the Amsoil would hold up better for extended drain intervals.



I thought it was pretty well established this oil analysis article had some real limitations and shouldn't be used as the only means to determine the best oil to use.

I'm not too enamored with the "ho-hum" terminology either. TDR is pretty careful about vetting the articles it prints and doesn't generally give advice.

It presents info for us to make our own decision. I believe this is the case on this article. Mr. Martin has pretty much withheld judgement on the quality of the base stocks and focused on the additive packages. His main point is DPF's have forced the hand of the oil marketers. The CJ additive packages, though necessary for the 6. 7, aren't apparently suited for the 5. 9's. The reduced oil change interval on the 6. 7's probably has more to it than just the EGR. There is concern that the additives are insufficient. I'm curious if the "A" 15k interval was forward engineered to cover CJ oils. Anyone have any info on this?

 

[betterthanstock]

. I'm curious if the "A" 15k interval was forward engineered to cover CJ oils.

The 15K interval appeared in 03 with the introduction of the common rail, because they produce so much less soot than the previous trucks.

In 04. 5, the oil gets dirty a lot faster, but they (Cummins) retained the 15K interval. Go figure.

Forward engineered? Ha, they struggle to meet emissions, plugged EGR, turbos, DPF . They surely tested the CJ in the new engines, but come on, why would they bother to test it in the old engines? I've seen pictures of one half-million mile truck, describing wear of various engine parts, but that's it.

Dodge only tests to 150K equivalent miles.