Since these levels appear to be of no significance maybe they should stop reporting them all together. Just show contamination/wear info.
Still having oil Detergents confusion....
- Thread starter ZZman
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4WD
$50 site donor 2025
Well, we have heard from filter threads there is water in oil
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OVERKILL
$100 Site Donor 2021
If you cook a lasagna in a ceramic pan, invariably, some of the cheese bakes onto the ceramic and requires scrubbing to remove, just dumping some dawn on it and running some water over it isn't going to take it off, heck, even putting it in the dishwasher won't remove it. This is similar to trying to remove varnish, if you don't have something that can attack and dissolve the deposit (think oven cleaner for example, a strong solvent), it's going to require physical scrubbing to remove. Dawn makes the removal easier, with scrubbing, and helps carry away the material you break off, but it's not going to remove the deposit by itself.
On the other hand, the grease/oils in the bottom of the pan, which aren't adhered, some hot water with some dawn, let it sit, it will rinse off. This is somewhat similar to how sludge/emulsification can be removed by an oil.
People like to obsess over things even if they don't understand the significance.
Absolutely. We are obsessed with everything oil....
MolaKule
Staff member
Yes, even after all of the discussions we have had on BITOG. Do a search on "Question of the Day" where in the past we discussed most if not all of these additive components.
"Oxidation inhibitors, detergents, and dispersants make up the general class of additives called stabilizers and deposit control agents. These additives are designed to control deposit formation, either by inhibiting the oxidative breakdown of the lubricant or by suspending the harmful products already formed in the bulk lubricant. Oxidation inhibitors intercept the oxidation mechanism, while dispersants and detergents perform the suspending part.
Detergents neutralize oxidation-derived acids as well as help suspend polar oxidation products in the bulk lubricant.
Dispersancy (as in organic dispersants) pertains to a dispersant’s ability to suspend by-products of combustion, such as soot, and lubricant degradation, such as resin, varnish, lacquer, and carbon deposits..." Lubricant Additives Chemistry and Applications, chapters 4 and 5, by Leslie Resnick, editor.
Some base oils such as esters can also act as detergents by dissolving and suspending carbonaceous
materials. HPL's Engine Cleaner has the chemistry to do all of the above.
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When I worked for Toyota we had the V6 sludge motors. I was removing heads to clean and replacing seals. I tried new engine way but Toyota sent a bulletin for us to remove oil pan and pressure wash only. Only if it smoked afterwards could we request a new engine.
Nice eh.....eh.
Zddp? Solvents?
Back in 2005 or so when I raced my rx-7 one of the guys kept on and on about using non-detergent oil as detergents would "attack" bearings. It took me forever to get him off that kick. I told him if detergents in oil attacked bearings wouldn't alot more engines be self-destructing than do?
And people like to make wild claims to try and fit their misconceptions - wild stuff that hasn't been heard for years. Seems to be a growing theme lately.
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