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Re: Anyone using Rotella Diesel oil in their musclecars? [Re: pinkduster] #2390928
10/21/17 07:02 PM
10/21/17 07:02 PM
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Supercuda Offline
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20w50is very old school thinking.

I would not recommend 20w50 for anything other than a very old school, and archaicly, built engine.

Run the thinnest oil that will still give you goo oil pressure. I typically run 10w30, max.


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Re: Anyone using Rotella Diesel oil in their musclecars? [Re: Supercuda] #2390935
10/21/17 07:12 PM
10/21/17 07:12 PM
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In answer to the "anyone using Rotella diesel oil... ".

Yes. I have run 15W40 in my BB stroker and other classics. It has (still) a decent amount of zinc and viscosity seems about right for 3 season use in a typical performance engine. Originally these engines were designed for 10W30. With bearing clearances opened up a bit typicaly, a little more viscosity helps maintain hot oil pressure... especially on the street in stop and go traffic.

For most engines, agree 20W50 is probably on the heavy side though your engine will tell you what it likes. I look for 20+ psi hot idle on a fresh engine.

Re: Anyone using Rotella Diesel oil in their musclecars? [Re: Supercuda] #2390959
10/21/17 09:01 PM
10/21/17 09:01 PM
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Originally Posted By Supercuda
20w50is very old school thinking.

I would not recommend 20w50 for anything other than a very old school, and archaicly, built engine.

Run the thinnest oil that will still give you goo oil pressure. I typically run 10w30, max.
I still haven't installed an oil pressure gauge which is crazy I know. It came with an electrical gauge since it was an AHB, but I didn't re-install when crate engine was put in, so I don't know what oil pressure I have currently running Valvoline 10W-30. Again, I know I have GOT TO put an oil pressure gauge back in! I figure my engine is kind of old school, not being high tech tight tolerances modern day engine. Yes, roller cam, but still not the tight tolerances of today's modern built engines, no?


Facts are stubborn things.
Re: Anyone using Rotella Diesel oil in their musclecars? [Re: pinkduster] #2390980
10/21/17 10:00 PM
10/21/17 10:00 PM
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Well, I ran 5w30 in my 87 Diplomat's 318, said 318 is going strong still, unrebuilt.


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They say there is always the exception that proves the rule.
Don't be the exception.
Re: Anyone using Rotella Diesel oil in their musclecars? [Re: pinkduster] #2391084
10/22/17 09:08 AM
10/22/17 09:08 AM
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I used diesel oil in my poly 318 to get some zinc in and too cheap for brad penn.

Last edited by crlush; 10/22/17 09:43 AM.
Re: Anyone using Rotella Diesel oil in their musclecars? [Re: pinkduster] #2391108
10/22/17 10:55 AM
10/22/17 10:55 AM
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let's not divert to the "benefits" of zinc in diesel oil


They say there are no such thing as a stupid question.
They say there is always the exception that proves the rule.
Don't be the exception.
Re: Anyone using Rotella Diesel oil in their musclecars? [Re: Supercuda] #2391224
10/22/17 02:14 PM
10/22/17 02:14 PM
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Originally Posted By Supercuda
let's not divert to the "benefits" of zinc in diesel oil
The only reason I went a little off topic is I revived this thread that began 2008, and has not been active in OVER two years. It's nine years old and seemed to have run it's course, and Valvoline VR1 was discussed within the thread.


Facts are stubborn things.
Re: Anyone using Rotella Diesel oil in their musclecars? [Re: pinkduster] #2391243
10/22/17 02:37 PM
10/22/17 02:37 PM
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Being 9 years old I doubt any of the oil formulations mentioned then are still made today.


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They say there is always the exception that proves the rule.
Don't be the exception.
Re: Anyone using Rotella Diesel oil in their musclecars? [Re: pinkduster] #2391261
10/22/17 03:02 PM
10/22/17 03:02 PM
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Spring Valley ,Ca.
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I use it for the high zinc content

Re: Anyone using Rotella Diesel oil in their musclecars? [Re: moparsquid] #2391266
10/22/17 03:08 PM
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Originally Posted By moparsquid
I use it for the high zinc content


they removed most of the zinc a few years ago.


526 cubes of angry wedge, pushbutton shifted, 9 passenger killer!
Re: Anyone using Rotella Diesel oil in their musclecars? [Re: pinkduster] #2391270
10/22/17 03:12 PM
10/22/17 03:12 PM
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My point made


They say there are no such thing as a stupid question.
They say there is always the exception that proves the rule.
Don't be the exception.
Re: Anyone using Rotella Diesel oil in their musclecars? [Re: pinkduster] #2391281
10/22/17 03:31 PM
10/22/17 03:31 PM
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Kirkland, Washington
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HDEO oils are now CK-4 lower ash. It's all about emissions and mpg in the trucking world.

These oils also undergo formulation changes that sometimes do NOT result in a designation change--meaning 'we' don't know. I bought over a million gallons of DELO 15w40 and 10w/30 over the years working for Kenworth.

We would be notified of a formulation change so that we could deplete stock prior to arrival of new, but they were always backwards compatible.

Relying on HDEO's for a high zinc content (in a high lift, high spring pressure, flat tappet scenario where hi ZDDP is truly required) may be a dangerous practice. The HDEO industry is changing!

Re: Anyone using Rotella Diesel oil in their musclecars? [Re: pinkduster] #2391315
10/22/17 04:34 PM
10/22/17 04:34 PM
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Id run it 10-15 years ago with no additive, now, just any decent oil with a bottle of zinc additive, no issues either way.

And using the composite lifters on most everything im not even sure I need to add anything.

Didnt they pull the zinc do the the emission related parts?

Re: Anyone using Rotella Diesel oil in their musclecars? [Re: pinkduster] #2391324
10/22/17 04:49 PM
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There is still zinc in the diesel oils, but it has been reduced over the years, and it is detrimental to converters. ash was reduced due to the DPF's.

Re: Anyone using Rotella Diesel oil in their musclecars? [Re: Supercuda] #2391464
10/22/17 09:54 PM
10/22/17 09:54 PM
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Originally Posted By Supercuda
My point made
Wow. You're the bestest.


Facts are stubborn things.
Re: Anyone using Rotella Diesel oil in their musclecars? [Re: larrymopar360] #2391506
10/22/17 10:47 PM
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Originally Posted By larrymopar360
Originally Posted By Supercuda
My point made
Wow. You're the bestest.


Yeah, 10 ear old info is fresh rolleyes


They say there are no such thing as a stupid question.
They say there is always the exception that proves the rule.
Don't be the exception.
Re: Anyone using Rotella Diesel oil in their musclecars? [Re: pinkduster] #2391880
10/23/17 04:02 PM
10/23/17 04:02 PM
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See the HAMB discussion: ZDDP again!

My understanding is that the 800 ppm phosphorus limit is really only applicable for dual-rated (CK-4/SN) 30-grade HDEOs. I've been using Petro Canada Duron SHP 10W-30 which has both API CK-4 & Ford WSS‐M2C171‐F1 but has the same additive package for Duron SHP 15W-40 (API CK-4/SN & Ford WSS‐M2C171‐F1). Shell Rotella T4 now only has diesel ratings (no Ford WSS‐M2C171‐F1 either) and no longer has any S-ratings.

Originally Posted By "Blues4U"
But there are those who do have aggressive aftermarket cams and high pressure springs, or people just want extra assurance, like me. I use a heavy duty diesel engine oil with typical zinc level of >1200 ppm. Sholoff posted some brands a couple of posts up, any of those are good oils. The new CK-4 specification for HDEO's raises the performance level up even higher, but beware of oils that list both API CK-4 & SN service classification, as they now are required to meet the lower zinc levels of the SM category. Stick with an oil that is CK-4 only and you'll be just fine.

I'm NOT a fan of aftermarket oil additives, like ZDDP in a can, as they can (and probably will) upset the balance of the chemistry of the additive package, which includes other surface acting chemicals besides ZDDP, and just mixing the unknown chemicals together with no way to know how they will react is looney, no real chemist worth his diploma would approve.


Originally Posted By "Blues4U"
Also, just to clarify about ZDDP, it is, as I posted above, a surface acting chemical. It has a polar head (seeks to attach itself to metal surfaces) and an oil soluble tail. It reacts chemically with the metal surface due to the heat of operation to form a glass like layer (what we geeks call a "tribo film") on the rubbing surfaces of the engine, to provide a self sacrificing layer. When the parts rub together this layer will rub off, preventing metal to metal contact. As the layer is rubbed off, additional ZDDP in the oil will plate out on the surfaces to replace it. The rate at which the film rubs off is related to the severity of the load (aggressivenes of cam and pressure of the valve springs). A mild or medium severity cam and low to medium pressure springs will remove the film at a lower rate than an aggressive cam with high spring pressures.

Now this is important. The tribo film will only get so thick, no matter how much ZDDP is in the oil. Putting more ZDDP in the oil does will not provide a thicker film. Let that sink in for a moment. More ZDDP does not equal a thicker tribo film. What it means is the oil can protect the surfaces longer than an oil with lower levels of ZDDP. In theory, if you only put a few hundred miles between oil changes, even when using a modern SN gas engine oil with low levels of ZDDP, you will probably never deplete the ZDDP out of the oil and never have a wear problem. Of course, that depends on the aggressiveness of your cam and the pressure of the valve springs, and how hard you drive it.

Re: Anyone using Rotella Diesel oil in their musclecars? [Re: Frank Raso] #2391968
10/23/17 06:47 PM
10/23/17 06:47 PM
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To the resurrectionist: If you want to ask a question don't you think you could just make a new post? Are the Mods charging for starting a thread? Some newby is going to read the old stuff and "learn" a crapload of incorrect information.

Rotella? Go to your local Walmart and look at the Diesel oil selection. There are now THREE grades of Rotella. Saying put Rotella in it has little meaning unless you specify the grade.

R.

Re: Anyone using Rotella Diesel oil in their musclecars? [Re: pinkduster] #2392121
10/24/17 12:24 AM
10/24/17 12:24 AM
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Downtown Roebuck Ont
Twostick Offline
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If you want to KNOW what is in a particular brand of oil for phos and zinc, the best way is to just swing by Walmart and buy a quart and then stop at your local big truck dealer and ask for an oil sample kit at the parts dept. There are a few different labs, Wearchek (sic?) Blackstone and Caterpillar are a few.

Cost, $15-20. Pour some oil in the bottle, fill out the info form and hand it back to the parts guy to send out.

In a week or ten days you will know exactly how many PPM is in that brand of oil.

Kevin.

Re: Anyone using Rotella Diesel oil in their musclecars? [Re: pinkduster] #2392133
10/24/17 12:42 AM
10/24/17 12:42 AM
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Downtown Roebuck Ont
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Here is a Delo 15/40 used oil sample from June of this year. Oil has approx 3000 miles on it.

Kevin

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