Acdelco ADBV material

[Schandyman]

I been back and forth choosing an oil filter for my next change came across an interesting article. The material acdelco uses for their adbv appears to be nitrile but it's actually a high temperature AEM material manufactured by Dupont.

 

[Davejam]

How do you know this?

 

[Schandyman]

How do you know this?

 

[Davejam]

cool cool cool

 

[Sayjac]

Call me a skeptic, but sounds/reads like marketing. I have seen that info description on ACD OFs before. So, is it supposed to better than nitrile, last longer, stay pliable longer? How would it compare to silicone? I 'suspect' it still wouldn't stay pliable as long as silicone.

For kicks and giggles, I would like to see the burn test done on one of these ACD "AEM" material adbvs.

 

[Job]

Good link, observant. Tight seals are vital to keep the oil from draining down from the engine and having noisy starts.

 

[Schandyman]

That burn test makes me laugh

You got serious problems if your engine and oil can ignite nitrile rubber. You best dial 911 and have a fire engine dispatched to your location asap.

 

[Schandyman]

Good link, observant. Tight seals are vital to keep the oil from draining down from the engine and having noisy starts.

I would put it up for 10k

 

[Sayjac]

That burn test makes me laugh

You got serious problems if your engine and oil can ignite nitrile rubber. You best dial 911 and have a fire engine dispatched to your location asap.

I can see why it makes you laugh because your comment makes it clear you don't understand the purpose of the test.

Fyi, zero to do with engine oil igniting a nitrile adbv. Thanks for trying though.

 

[kschachn]

That burn test makes me laugh

You got serious problems if your engine and oil can ignite nitrile rubber. You best dial 911 and have a fire engine dispatched to your location asap.

This comment makes me laugh

Did Fram switch back to nitrile adbvs?

Was going to pick up an oil filter for my next oil change and the Fram EGs and TGs have black adbvs. Or are their silicone adbvs black now? I remember in the past rubber was always black and silicone was always orange. They also went up a couple of bucks. If this is old news and I missed it...

bobistheoilguy.com

You and hrv would get along great in that thread.

 

[Schandyman]

Someone’s feelings are hurt the insults and belittling is coming out

 

[Schandyman]

A backyard mechanic burning ADBV’s is definitely more entertaining then watching paint dry. What else am I supposed to get from it. That silicone remains more pliable has a higher flash point.

 

[kschachn]

Polymers don’t have flash points. Especially not a silicone elastomer.

 

[Schandyman]

Polymers don’t have flash points. Especially not a silicone elastomer.

Thanks for the science lesson.

 

[ZeeOSix]

Comparison between Nitrile, AEM and Silicone.
Source: https://www.allsealsinc.com/Material-Selecting-Rubber-Compounds.html

In terms of hot and cold temperature properties, the best to worse are: Silicone > AEM > Nitrile.

Note that for AEM has a comment:
" not recommended for exposure to fuel, brake fluid, aromatic hydrocarbons or phosphate esters. "

In a bad fuel diluting engine, this may or maynot be a concern depending on the level of fuel dilution and OCI (exposure time to fuel).

 

[kschachn]

Comparison between Nitrile, AEM and Silicone.
Source: https://www.allsealsinc.com/Material-Selecting-Rubber-Compounds.html

In terms of hot and cold temperature properties, the best to worse are: Silicone > AEM > Nitrile.

Note that for AEM has a comment:
" not recommended for exposure to fuel, brake fluid, aromatic hydrocarbons or phosphate esters. "

In a bad fuel diluting engine, this may or maynot be a concern depending on the level of fuel dilution and OCI (exposure time to fuel).

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Thanks for the science lesson

 

[Sayjac]

So in summary, for adbvs, topic AEM better than nitrile (though 'perhaps' not with some level of fuel dilution) but not as good as silicone. The last having the greatest temperature range capability.

Nitrile still ok ~5k mi. oci.

As an aside, I appreciate the citing of the source material.

 

[Schandyman]

So in summary, for adbvs, topic AEM better than nitrile (though 'perhaps' not with some level of fuel dilution) but not as good as silicone. The last having the greatest temperature range capability.

Nitrile still ok ~5k mi. oci.

As an aside, I appreciate the citing of the source material.

Since we're all obsessed and follow good automotive maintenance doesn't matter nitrile, aem or silicone will last longer than our sanity.

 

[CleanSump]

Educational thread.
BITOG; Jump past the snarky connerie and there is the good content!

 

[Job]

Although the above chart is not necessarily gospel, it does make points. For some reason people see fuel then jump to fuel dilution on AEM, even though AEM has high resistance to oil and fuel in oil is a small %, but ignore low mech strength on silicone, good for static seals, not dynamic Chart says.
Maybe this is why we see Motorcraft engineers putting extra ribs on the silicone adbv? I think so. Good to learn things.