gimme that Cat, Mack, DD, Cummins oil!!!
04-05-2007, 04:08 PM
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gimme that Cat, Mack, DD, Cummins oil!!!
Reading the posts on some brave experiments wrt to oil selection thought I'd post.
Couple of reasons a diesel oil (latest generation i.e. CJ-4) might make sense.
1. CJ-4 has low SAP. low sulfur, ash and phos. this means it is designed for a)low sulfur fuel and b) particulate traps. Translation; the oil design is not so different from gasoline car as in past when HDD oils needed to "handle" high sulfur diesel fuel. But it is also backwards compatible so older generation engine designs using hi S fuel are also adequately lubricated. Translation; still performs well with high sulfur fuel i.e. pretty damn good even when subject to conditions for which it is not designed.
2. CJ-4 is specifically targeted at latest generation truck engines and has these attributes;
These oils are especially effective to sustain emission control system durability, where, particulate filters and other advanced aftertreatment systems are used. Optimum protection is provided for control of catalyst poisoning, particulate filter blocking, engine wear, piston deposits, low and high temperature stability, soot handling properties, oxidative thickening, foaming, and viscosity loss due to shear.
This is a quote from a Lubrizol web-site (world leader in oil additives).
Particularly notice the reference to improved stability, soot handling, oxidation control and shear stability. From RI RS4 posts, his primary concern is really on fuel dilution and deleterious effects of same. These parameters will tend to offset/mitigate fuel ingress into engine.
3. Gasoline Engine lubricants, designed specifically and uniquely for same, are often targeting improved fuel economy. So basic wear and deposit control are subordinate to FE. Why this matters is that shear stability (a good thing, especially if facing fuel dilution) and deposit control another good thing to keep everything clean) can be lowered to stay in "adequate" range, but certainly not superior.
Anyway, this ramble concludes with:
Latest generation truck oils look more like regular gasoline oils than you'd imagine, are kick-*** high performing in a range of attributes that might matter to a high performance gasoline engine, and the "designed for gasoline" oils are inherently compromised by a series of stupid tests that purport to measure improved FE, but do nothing of the sort (even supposing this matters to you).
But I'm still sticking to warranty oil, though changing at 3,000 miles. Too much data to do otherwise. Kudos to RI RS4.
This is for us US folks who don't have access to the Euro oils.
Couple of reasons a diesel oil (latest generation i.e. CJ-4) might make sense.
1. CJ-4 has low SAP. low sulfur, ash and phos. this means it is designed for a)low sulfur fuel and b) particulate traps. Translation; the oil design is not so different from gasoline car as in past when HDD oils needed to "handle" high sulfur diesel fuel. But it is also backwards compatible so older generation engine designs using hi S fuel are also adequately lubricated. Translation; still performs well with high sulfur fuel i.e. pretty damn good even when subject to conditions for which it is not designed.
2. CJ-4 is specifically targeted at latest generation truck engines and has these attributes;
These oils are especially effective to sustain emission control system durability, where, particulate filters and other advanced aftertreatment systems are used. Optimum protection is provided for control of catalyst poisoning, particulate filter blocking, engine wear, piston deposits, low and high temperature stability, soot handling properties, oxidative thickening, foaming, and viscosity loss due to shear.
This is a quote from a Lubrizol web-site (world leader in oil additives).
Particularly notice the reference to improved stability, soot handling, oxidation control and shear stability. From RI RS4 posts, his primary concern is really on fuel dilution and deleterious effects of same. These parameters will tend to offset/mitigate fuel ingress into engine.
3. Gasoline Engine lubricants, designed specifically and uniquely for same, are often targeting improved fuel economy. So basic wear and deposit control are subordinate to FE. Why this matters is that shear stability (a good thing, especially if facing fuel dilution) and deposit control another good thing to keep everything clean) can be lowered to stay in "adequate" range, but certainly not superior.
Anyway, this ramble concludes with:
Latest generation truck oils look more like regular gasoline oils than you'd imagine, are kick-*** high performing in a range of attributes that might matter to a high performance gasoline engine, and the "designed for gasoline" oils are inherently compromised by a series of stupid tests that purport to measure improved FE, but do nothing of the sort (even supposing this matters to you).
But I'm still sticking to warranty oil, though changing at 3,000 miles. Too much data to do otherwise. Kudos to RI RS4.
This is for us US folks who don't have access to the Euro oils.
04-05-2007, 07:57 PM
#3
You're sounding like Terry Dyson
It took him a month of convincing to get me to put diesel oil in my engine.
Hell, and now he's got me putting in vegetable oil. Damn, the RS4 engine will make a good Fry Daddy, too.
Hell, and now he's got me putting in vegetable oil. Damn, the RS4 engine will make a good Fry Daddy, too.
04-06-2007, 11:13 AM
#6
Wesson Oil is nice
<center><img src="http://graphics.samsclub.com/images/products/0002700069004_LG.jpg"></center><p>
And you can french fry when you drive.
To be serious, I can neither confirm or deny whether I am using a custom 5W-40 blend of this stuff. My service tech said he put 502 approved oil in the engine, as I was talking to him.<ul><li><a href="http://www.renewablelube.com/products/pdf/Super%20High%20Perf.%20Motor%20Oils%20(RACING).pdf ">Bio Degradable Racing Oil</a></li></ul>
And you can french fry when you drive.
To be serious, I can neither confirm or deny whether I am using a custom 5W-40 blend of this stuff. My service tech said he put 502 approved oil in the engine, as I was talking to him.<ul><li><a href="http://www.renewablelube.com/products/pdf/Super%20High%20Perf.%20Motor%20Oils%20(RACING).pdf ">Bio Degradable Racing Oil</a></li></ul>
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04-06-2007, 06:03 PM
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That's a good one :) Good for farmers and lowering CO2 as the.......
plants grown will need it. Bad for terrorist, oil companies and anyone making money from the war. Let me state for the record that I'm NOT a tree hugging liberal. I just don't understand why everyone seems to miss the great reasons to grow our own diesel. As I said I was planning on a Q7 V12 TDI for the wife.
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