HPL Premium Plus, 0w-30, 7500 miles; Ram 1500, 5.7 hemi, Used Oil Analysis

[hemioiler]

Thought I'd post my recent update. That was my last run of HPL PP, just using up the remaining stock I had. The plan is to have at least 4 more consecutive runs of HPL PCMO 5w-30 year round as its the cheapest formula and seems to work well for me, the oil already being stocked on my shelf and ready to go.

Driving style, I'd say I mostly drive very conservative. I can go days without exceeding 2200 rpms. Winter (this run) it sees 5 min remote starts but no aggressive driving unless at temp. It does see a fair amount of towing, many hours at 2200 rpms on the freeway, calm/measured acceleration when getting up to speed rarely exceeding 3500ish rpms.

With my 180 tstat, temps rarely exceed 230F while towing, often on the straights it sits for hours at about 220F. So it probably has an easy life all things considered. It does see some "work", but never (ever) abuse.

This follows the blackstone format, with 2 extra lines under the iron/copper where I calculated PPM/1000 miles (all other units are kms)

 

[Astro_Guy]

What does Blackstone have to say about universal averages for that engine?

 

[hemioiler]

What does Blackstone have to say about universal averages for that engine?

aluminum = 4
chromium = 1
iron = 20
copper = 24
lead, tin = 0

 

[Astro_Guy]

aluminum = 4
chromium = 1
iron = 20
copper = 24
lead, tin = 0

Did they mention the number of miles their averages are based upon so that you calculate wear metals in PPM / 1K miles? They will tell you if you ask but often times it is included in their comments.

 

[hemioiler]

Did they mention the number of miles their averages are based upon so that you calculate wear metals in PPM / 1K miles? They will tell you if you ask but often times it is included in their comments.

They did originally, but I honestly don't think those averages are useful. We're all running different oil formulas, different viscosity's, different driving styles, towing or not towing, mostly cold weather or mostly warm weather etc.

Do give you an example... copper. It's really high in my engine (at first) and any other engine that is using an oil with high amounts of esters. The copper isn't from wear, its from the ester reacting with the oil cooler. Engines running PUP see much lower amounts of copper, engines running HPL or Redline see much higher amounts when they initially switch, and then see it drop off over the next OCI's just like mine did. It's well understood at this point but Blackstone just reports a universal avg which means nothing there.

Then for iron... well my truck tows, and it's an iron block v8, it's going to see 2ppm/1000 miles on the low end up to 6+ ppm/1000 miles on the higher end. I see this on reports from ramforum so my truck is doing really well WRT iron as far as I can see. It did bump up a little this past interval but the formula changed since the previous few runs and 2 to 4 is very healthy for a hemi, never mind one that tows.

Alum... there is a few PPM alumunium in all(?) HPL's formulations, it's part of the moly as explained by David Ward elsewhere on this site. Anywhere from 4 to 9 I think is typical in a HPL VOA.

Those are the wear metals that are worth speaking about; the other ones hover around 1-3 ppm unless a serious problem develops.