Bruceblend original recipe 0w-10

[Gary Allan]

I just couldn't resist. I didn't want to use up my supply of 0w-20-Lite since I'm convinced it will work well in my 4 banger ..so today I just sorta looked at the original 0w-10 ..with all its vitamins and minerals and dumped 6 quarts of it into the wife's 4.0.

Here is the VOA on it for those not acquainted with the original formula.

VOA
Vis @ 40 29.4
Vis @ 100 5.2
VI only 105 (additives lowered it)
Moly 2146 ppm
Zinc 2085 ppm
Phos 1827 ppm
TBN 11.5
HTHS 2.04 (computer model estimate)

We'll see if it seeks out and liberates copper like it did in my minivan's coolers.

 

[G-MAN]

What engine? What vehicle? How will it be driven?

 

[deven]

Visc @100 is 5.2. I already like this oil. I am pretty sure TallPaul will like the add numbers too. That amount of moly is outta this world.....time to bottle it up and sell it.

 

[Shannow]

Quote:

---

What engine? What vehicle? How will it be driven?

---

Jeep isn't it ?

 

[Curious Kid]

Oh man, you've got some!

I do wonder for wear areas like lead babbit bearings, where what would otherwise seem like capable wear films, might be less benefit if behaving like ZDDP films whose strength is greater than the sub-straight it's formed on. Forgive me if I'm raising concerns that are w/o merit, I know little.

Take care and good luck. Look forward to test data and observations from the field.

 

[Gary Allan]

My wife's 4.0 Jeep Wrangler (that's all we have left

) She'll drive it and the 2.5 on alternate weeks (the 2.5 has the 0w-20-Lite formula). This will give both engines about 50 miles of highway 5-6 days every other week. I'll do the shorter stuff when she's not driving one or the other. Most of the mileage will be highway ..and I'll try and keep track of short mileage to report it in a % of use.

The UOA wasn't stellar on 5w-20 PZ Plat ..but there were fuel issues that needed addressing. It seemed to really effect the elemental values. The UOAs

I was going to put in Amsoil HDD ..but ..mainly due to the span of time that it takes for one person to get through a series of trails, figured I'd kill two birds with one driver. An oil like this needs mileage to prove its suitability. Time just wouldn't really mean much other than TBN retention. I figure that it will take about 4-5months to get to the 5k mileage point on both vehicles. That should give a good indication of suitability/sensibility of this oil in this application. I really would have rather used my minivan. The spot UOA that was performed on it showed elemental values in the lower single digits for everything except Cu (2400) ..which I was sure was due to the copper content in the exchangers. I was running the new formula naked (coolers bypassed) when it was stolen.

We'll see what we will see

 

[Gary Allan]

Quote:

---

Forgive me if I'm raising concerns that are w/o merit, I know little.

---

Well, you may feel you know more when I test it. The Pb on this engine has never been all that great. Not alarming ..but never anywhere near ideal. My 2.5, in comparison, has shown maybe 1 ppm in UOA that had loads of Fe. Even on extended drains. That is, I will expect some Pb in the report.

 

[bruce381]

gary you might want to recap WHY you wanted a 5.0 cSt oil anyway. I forgot myself

didn't you want a thin oil for startup them you were going to control the oil temp to RUN at ?? a 7.0 or something vis with your oil coolers?

Please exsplain again my head hurts.

bruce

 

[Gary Allan]

Yes, Bruce. That was the original plan. To go with really thin oil that would further reduce parasitic loses on start up ..but forced cooling to put it in the 20 weight range during peak temps. Not only thin oil ..but rapidly heated thin oil with forced circulation heating and cooling.

But it did so well in idle situations where temps went to 210f+ (no HLA noise ..etc..etc.) that I felt that it would probably do just fine all by itself. What did I have to lose anyway? If it produced some elevated wear ..so what? It wasn't going to grenade the engine in a common passenger car usage environment. As it was, with the fancy cooler setup spot UOA as a guide (and aside from copper), it showed that there was nothing above the noise level in terms of metals. The sample was even void of break in/remanufacturing debris.

So, now we're going to truly run it naked in an ill spec'd environment and see what happens. I've already got a trend with Terry with 5w-20 oils ..now we'll see what it looks like with dosed additives with even lower visc.

I think that it will do fine. It may not prove to be an ideal oil for this engine ..but it will probably be suitable.

I wanted to use it in some rollerized valve train engine ..or even my daughters 3.0 Vulcan ..but I can't be assured of getting the mileage compressed into a short enough span to make any sampling reliable.