Denso oil filter empty 2 hrs after shut down

[Chris142]

Our FJ lets us know about dry starts. The timing chain rattles when a filter drains. My wife mentioned that she heard it a few days ago.

Its been 2 hrs since she parked it. I removed the oil filter and found it completly empty. Less than 2500 miles on this filter.

Replaced it with an orange can. Can't be any worse.

 

[Mewbs]

Can you cut it open?

 

[paulri]

It would be interesting to know if this is one with the silicone ADBV or not.

Can you cut it open?

 

[Chris142]

It would be interesting to know if this is one with the silicone ADBV or not.

how can i tell? looks black from what i can see

 

[ZeeOSix]

how can i tell? looks black from what i can see

Burn test. If it's silicone it will burn with white smoke. If nitrile it will burn with black smoke.

 

[LazyDog]

I been using Denso filters for a few years, my stash is from 2019. It seems the new filters are not as good as the older stuff.

 

[atikovi]

Does a Toyota filter do the same thing?

 

[TomYoung]

It’s good that you caught a bad filter. I don’t use Denso filters myself, but thought from what I read on Bitog that they are a very solid choice. Doubt you have any damage from this.

 

[Sayjac]

I'm going to say black adbv here is nitrile with 99% confidence. Topic China made Denso First Time Fit (FTF) filter has been burn tested* and tested as nitrile. That despite what Denso FTF site info still shows. The silicone adbv info on site comes from when FTF filter had orange adbv and before made in China. Note, topic is not a Toyota Thai Denso OEM. Reads like topic filter adbv compromised.

 

[jeepman3071]

If it's black, most likely a nitrile valve. My Jeep 4.0L is also sensitive to ADBVs.

 

[fantastic]

Like mentioned grab a filter with silicone ADBV.