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Oil Additives what are they?

Wrecker

The Oil Geek
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Generally oil "Improvement Additives" fall into 3 categories.

1. Viscosity improvers- Products like STP Oil Treatment, Motor Honey, etc. They contain long chain hydrocarbons that raise the kinematic viscosity of the lubricant, thereby temporarily reducing blowby and smoking. They also tend to quiet a loud engine with slop in the valvetrain. A mechanic in a bottle.

2. Chlorinated additives- Products like Dura-Lube, Militec, Prolong, etc. These additives have high concentrations of chlorine and can create hydrochloric acid in internal combustion engines, rapidly reducing the TBN (Total Base Number) of your engine oil which can affect non-metallic surfaces and ultimately metal surfaces, causing internal corrosion, pitting, etc. Most use an extremely cheap Group I base stock carrier oil with a high paraffin content, and can significantly contribute to deposit formation. They use Chlorides because they are slippery, anyone ever seen Chlorox used in a burnout pit?

3. Solid Film or Colloidal additives- Products such as Slick 50, T-Plus, Restore, etc. contain teflon/ptfe, molybdenum, or graphite. These add solids to the oil system, again usually with a cheap low quality Group I base stock carrier oil, which adhere to metal surfaces, theoretically inducing a burnishing process (you've seen real burnishing causing the wear lines on the race of a wheelbearing after use, it deforms the surface of the metal due to pressure and sliding action). Unfortunately, these solids stick to each other as much as anything else, forming larger solids, clogging filters, and possibly blocking oil galleries.
Solids may also dam up around bearings, reducing oil flow. Teflon/PTFE can react with some metals such as aluminum and magnesium at high temperature, causing ugliness in turbo applications.
 
I've used STP many times in somewhat older gas engines and have seen good results with it. Along with regular oil changes it can be pretty beneficial to increase bearing and ring life due to it's cling effect. I've taken apart many a sm block chev that had STP regularly used and have been quite surprised at the excellent condition of the internals Vs those without STP (but no real data on oil change interval either unlike the STP ones). I'm certainly not endorsing it, just stating my experience over the last 45 years or so. I don't use it in my diesels or modern gas engines. I believe synthetic does that for the modern ones. That wasn't available until relatively recent times.
 
I don't know. Maybe they had really good lawyers. Castrol beat the lawsuit filed by Exxon/Mobil which allowed them and others to call Group III petroleum base stock oils "Full Synthetic", it's hard to say why or how this stuff happens.
 
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If that was the case in 2001 when that was filed, why are they still advertising it that way?

Quote from the article
NOTE:
The Commission authorizes the filing of a complaint when it has "reason to believe" that the law has been or is being violated, and it appears to the Commission that a proceeding is in the public interest. The complaint is not a finding or ruling that the defendants actually have violated the law. The case will be decided by the court.
My thoughts:

so it looks like it may not have gotten to court yet...it seems that a complaint doesn't have the teeth to prevent them from continuing with their claims...the court decision if it ever makes it there is probably in limbo with attorneys and appeals and some such nonsense.
 
I tried Z-Max in my car a couple of times. Did nothing noticeable. I'll stick to doing a seafoam treatment through the intake, fuel, and flushing out the crankcase every few oil changes.
 
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