Why does Techron advise to limit the number of applications during motor oil change intervals ?Does Techron get into the motor oil? Or does free deposits?
Why does Techron advise to limit the number of applications during motor oil change intervals ?
- Thread starter phoneman91
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$50 site donor 2025
It likely does both if a small amount makes it past the pistons …
I asked them this question a while back and they mentioned that it may thicken the oil.
Where is this? I remember maybe over a decade ago, they claimed that it was best to wait just before an oil change. They claimed it "depleted motor oil additives" to some degree. But I haven't heard of that being claimed recently.
https://www.chevronlubricants.com/en_us/home/learning/about-our-brands/techron/faqs.html
"Chevron offers a variety of Techron® products based on application. Please refer to the Techron® Product Comparison Chart for each Techron® product’s use frequency. For example, our Techron Complete Fuel System Cleaner is recommended for use every season (winter, fall, spring, summer) or right before an oil change with no more than two treatments between oil changes."
They used to claim that it was because it "depleted additives" in the motor oil. I suppose a treatment just before changing the oil would minimize the time of this depletion as it would be brought back up with an oil change. But right now it just seems to be a recommendation without any explanation as to why. I would think a large amount (which will get into the motor oil) probably affects the properties of certain additives.
It’s good but harsh stuff. I only use it once year. Pour it in, fill it up, Run it until the fill light comes on and then change the oil and filter.
I would think the issue is that detegents/dispersants work by binding to certain molecules and carrying them away. If they can bind to varnish and carbon, they probably bind to all manner of things in the oil. But hopefully the amount of blowby is fairly minor.
I seem to recall that Amsoil previously justified the higher levels of ZDDP by claiming that it sealed pistons better and resulted in less oil loss that would enter the combustion chamber and go into the catalytic converter. But with fuel detergents, I think it's the other way around.
Really....
Where did you hear this.........
I’ve never heard that one. Mostly that whatever the detergents do to deposits can similarly affect motor oil additives after the inevitable blow by past the rings.
harsh stuff? where did that come from?
Not sure about this either. Lower doses are in every tankful of chevron fuel.
Chevron did a study on this in 2020. PEA promotes sludge, and especially varnish.
https://www.sae.org/publications/technical-papers/content/2020-01-2100/
4WD
$50 site donor 2025
I use Techron Complete Fuel System Cleaner, every once in a while...moderate dosage.
