Amsoil 5w30 HDD yielding more rwhp???

[Powerstroke]

There are a couple of buddies of mine who have '05 and '07 powerstrokes with the typical exhaust, intake and tuning mods, and they both have claim to gained 7-10 rwhp on a dyno and better fuel economy by switching to Amsoil 5w30 HDD. The '05 PSD had Shell Rotella T 5w40 syn and yielded 7rwhp by going to the Amsoil 5w30 HDD. The '07 PSD had Chevron Delo dino 15w40 and gained 10rwhp by switching to the Amsoil 5w30 HDD. They love the oil...

I'm just not convinced that the Amsoil 5w30 HDD can produce more rwhp. But maybe more rwhp correlates with better fuel economy

Any input?? If this is true I will be kicking myself because I just ordered Amsoil AME 15w40 and maybe should've got Amsoil 5w30 HDD...but then again I live in hot sweltering Florida...

Any thoughts would be greatly appreciated...

 

[msparks]

If you are comfortable with the 5w30 weight. The HDD is AMSOIL's best oil they make.

I know a guy with a 2000 Power Stroke with over 250K on HDD, his truck runs like a champ--He lives in Hot sweltering Austin TX

 

[Powerstroke]

I'll try the 5w30 HDD after I use up the AME

 

[d00df00d]

RWHP and MPG gains wouldn't be too surprising IMO, given that your buddies went from good 40-weights to an awesome 30-weight. Lighter oil means less windage and friction, and Amsoil is good at keeping friction low in general.

Don't sweat buying the 15w40, though. Pretty much everything Amsoil makes is good stuff.

 

[daman]

7 to 10 hp?!?,, thats allot i don't believe it not from just changing oil's.

 

[Powerstroke]

I hear ya, I asked them to provide me with Dyno sheets so I could post them, but have none yet. I'm more inclined to believe gaining 10 rwhp by going from Chevron Delo 15w40 dino to the 5w30 HDD, becuase thats just a night and day difference in oil..

I guess it's possible, but dunno

 

[oilboy123]

This is from the company that makes Diesel motorcycles for the military:
http://www.dieselmotorcycles.com/

This is from Amsoil website comparing different oils, and economy increases and less wear using Amsoil:

HDT was servicing their motorcycles with Mobil Delvac 1 5W-40 and using Mobil 0w30 racing oil for their race engines. Mobil’s 0w30 is not diesel-rated or recommended for motorcycle wet-clutch applications. “We have seen for several years that our engines ‘like’ the lighter oils, especially during initial run-in,” said Hayes. “This has been especially evident when we look at camshaft and rod bearings after a new engine has been run very hard with no run-in.” HDT had been using Mobil 1 for three years, finding it was superior to conventional diesel oil, but they were having problems with blow-by. Impressive Results Hayes said HDT was drawn to AMSOIL because of the availability of AMSOIL 0W-20 Synthetic Motor Oil and Series 3000 5w30 Heavy Duty Diesel Oil. “We noticed an increase in horsepower right away as compared to Delvac 1,” said Hayes. “But what was quite surprising was the condition of an engine after a 50-mile run-in and over 120 full-throttle dyno runs. The camshaft bearings, the small and large end rod bearing didn’t even look like they had been run. During that series of dyno runs, we registered the highest horsepower and torque readings ever.” Hayes said their testing proved that AMSOIL Series 3000 5w30 Heavy Duty Diesel Oil provided better cam bearing lubrication, better transmission operation and less blow-by than their previous oil. “We picked up just over one horsepower at the rear wheel,” he said. “In addition, it appears that overall coolant temperature was down about five degrees.”Hayes said AMSOIL provides superior performance in the two areas that matter to him most: horsepower and lubrication, especially in new engines. At start-up, the exhaust cams are the last components the oil reaches. Because the military doesn’t break-in their vehicles like civilians do, and they typically don’t have time to allow a warm-up period, it is vital that the engine oil is able to flow immediately. For this reason, HDT takes their engines straight to dyno with no break-in, and they are run wide open.“The lubrication to the exhaust cams was really good,” said Hayes. “They looked beautiful.”

 

[Powerstroke]

Wow....I'll definately be switching to the Amsoil 5w30 HDD after I use up my new supply of Amsoil AME

 

[jerre310]

Better check out the new DEO and DME diesel oils. Info just released on their web site.

 

[Powerstroke]

I think those are for the new '07 and up diesels with all the DPF emissions [censored]

 

[jerre310]

You said in the opening statement 05 & 07 powerstrokes. These oils are to be backwards compatible.

 

[Powerstroke]

oh...gotcha...I understand now

 

[bbslider001]

Why not just send the 15w40 back and get the stuff you really want? They will exchange...I have done it in the past.

 

[Powerstroke]

I just put the new Amsoil 15w40 AME in lastnight...so too late ....but I'm not complaining because my 6.0 is running sooooo smooth now

 

[Extreme-Duty]

Originally Posted By: oilboy123
This is from the company that makes Diesel motorcycles for the military:
http://www.dieselmotorcycles.com/

This is from Amsoil website comparing different oils, and economy increases and less wear using Amsoil:

HDT was servicing their motorcycles with Mobil Delvac 1 5W-40 and using Mobil 0w30 racing oil for their race engines. Mobil’s 0w30 is not diesel-rated or recommended for motorcycle wet-clutch applications. “We have seen for several years that our engines ‘like’ the lighter oils, especially during initial run-in,” said Hayes. “This has been especially evident when we look at camshaft and rod bearings after a new engine has been run very hard with no run-in.” HDT had been using Mobil 1 for three years, finding it was superior to conventional diesel oil, but they were having problems with blow-by. Impressive Results Hayes said HDT was drawn to AMSOIL because of the availability of AMSOIL 0W-20 Synthetic Motor Oil and Series 3000 5w30 Heavy Duty Diesel Oil. “We noticed an increase in horsepower right away as compared to Delvac 1,” said Hayes. “But what was quite surprising was the condition of an engine after a 50-mile run-in and over 120 full-throttle dyno runs. The camshaft bearings, the small and large end rod bearing didn’t even look like they had been run. During that series of dyno runs, we registered the highest horsepower and torque readings ever.” Hayes said their testing proved that AMSOIL Series 3000 5w30 Heavy Duty Diesel Oil provided better cam bearing lubrication, better transmission operation and less blow-by than their previous oil. “We picked up just over one horsepower at the rear wheel,” he said. “In addition, it appears that overall coolant temperature was down about five degrees.”Hayes said AMSOIL provides superior performance in the two areas that matter to him most: horsepower and lubrication, especially in new engines. At start-up, the exhaust cams are the last components the oil reaches. Because the military doesn’t break-in their vehicles like civilians do, and they typically don’t have time to allow a warm-up period, it is vital that the engine oil is able to flow immediately. For this reason, HDT takes their engines straight to dyno with no break-in, and they are run wide open.“The lubrication to the exhaust cams was really good,” said Hayes. “They looked beautiful.”


Interesting story. What was the previous oil lacking to minimize blow-by?

 

[JAG]

It reads like the blow-by improvement was relative to Delvac 1.

 

[buster]

Smart move to make a HDD 5w30 grade. That alone will improve mpg/hp.