Originally Posted by CR94
How do you explain so many complaints of "start-up rattle" with Ultras? That many leaky new ADBVs?
I wouldn't call it a lot of reports of start-up rattle, buy yeah there are some. Like said before, any oil leaking out of the system when the engine is shut off is most likely a leaky ADBV. Any filter made could have that issue.
Personally, I've never had a vehicle that experiences start-up rattle, even after an oil change and a dry filter is installed, and all the oil galleries above the filter have drained out during the oil change. If an engine doesn't rattle from that situation, it's not going to rattle even if the ADBV leaks some. Obviously, some engines are way more sensitive to start-up rattle from oil leaving the oil galleries than other engines are.
How do you explain so many complaints of "start-up rattle" with Ultras? That many leaky new ADBVs?
I wouldn't call it a lot of reports of start-up rattle, buy yeah there are some. Like said before, any oil leaking out of the system when the engine is shut off is most likely a leaky ADBV. Any filter made could have that issue.
Personally, I've never had a vehicle that experiences start-up rattle, even after an oil change and a dry filter is installed, and all the oil galleries above the filter have drained out during the oil change. If an engine doesn't rattle from that situation, it's not going to rattle even if the ADBV leaks some. Obviously, some engines are way more sensitive to start-up rattle from oil leaving the oil galleries than other engines are.