Bypass oil filters

[Turbo Terry]

I was just reading some other forum old posts about oil filters and oil filters with built in bypass and that the new 6.7 engines have built in bypass ? So like extreme cold starts dirty filters heavy loads poor service etc waiting to long to change oil plugged filters. Do the new motors have bypass or should a bypass filter be used?

 

[bcbender]

I would not worry too much about it, do your annual service (if less than 15k miles/yr) and use a good filter, I use the higher grade fleetguard but may switch over to the Donaldson that John uses if its that much better. ... If you are using the 5w/40 syn (since you are in AK) it is all weather and you should not have any issues with cold starts.. use the block heater when really cold.. I did a study when I put my new cord in and its the most bang for the buck to only plug in for about 1.5~2h.. (amb was 29F though)... not sure what the thermal response is at say -20, but I'd assume its also initially fairly steep as I saw the first 30min.

 

[AH64ID]

A built in filter bypass and a bypass filter are two very different things.

The filter bypass is built into the filter head on the ISB, so nothing to worry about with cold oil.

A bypass filter gets about 10% of oil flow and filters it ultra fine, around 2um, and then dumps the oil into the pan bypassing the oil passages, hence the name. With modern oils, machining, and filters I don’t think they are as needed as 30 years ago. My 4Runner still has one that I installed in 05. I sold my 05 with a bypass filter installed but won’t be putting one on my 18.

 

[Ozymandias]

Stop worrying - start Enjoying.

The more you read the worse it will become.

 

[R.Taylor]

I ran a bypass filter on my 06 so I could get 25k on an oil change. It was a AMZ/OIL kit with huge filter.. Took the feed from the port on the top of the filter mount and returned it via a fancy valve cover oil filler cap with a fitting on it. Still got it on a shelf in the garage here....

 

[Turbo Terry]

So no expensive fleetguard filters required Thanks I like the fleetguard filter. So what’s the best one for my 2022 3500 ho

 

[AH64ID]

So no expensive fleetguard filters required Thanks I like the fleetguard filter. So what’s the best one for my 2022 3500 ho

The best filter is the Donaldson DBL7349.

 

[Turbo Terry]

My concern about the Donaldson was it filters to good and would plug in 15 k one year of driving but I will never do that many miles and the 6.7 has a bypasss. Truck is kept in heated garage in winter and Delvac 5 /40 syn will be trucks new oil late summer after break in 4 -5 k miles so no worry’s of plugging etc.

 

[AH64ID]

My concern about the Donaldson was it filters to good and would plug in 15 k one year of driving but I will never do that many miles and the 6.7 has a bypasss. Truck is kept in heated garage in winter and Delvac 5 /40 syn will be trucks new oil late summer after break in 4 -5 k miles so no worry’s of plugging etc.

The Donaldson will last longer than either of the Fleetguard filters, even with the better filtration. It’s a better filter in all aspects… rating, flow, and dirt holding capacity.

I don’t know if it’s still the case with some recent Amsoil changes, but for a long time DBL7349 and EaO80 were the same filter with minor can differences. Amsoil rated the filter for 25K miles. 15K miles is nothing.

 

[Turbo Terry]

I’m going to Order some from Amazon Is there a better place to get them.

 

[AH64ID]

I’m going to Order some from Amazon Is there a better place to get them.

Thats where I have been getting mine, just have to watch prices. $14-16/filter is all you should pay. Right now the prices are up, so I’d wait.

I paid $160 for a case last month and right now a case is $240.

 

[Cummins12V98]

The best filter is the Donaldson DBL7349.

Are the specs any different for the EaO80?


Looking above you said same but minor visual differences that I have seen also. I am sure the EaO80 is still the same as I visually compared them side by side. US and Mexican made.

 

[AH64ID]

Are the specs any different for the EaO80?

Yes, they changed a while back. Both state the same standard, ISO SO 4548-12, but at 99% Amsoil now states 20um and Donaldson states 15um.

I haven’t looked into it too much thou as even at dealer cost the Amsoil filters are more expensive.

 

[Turbo Terry]

Thanks John

 

[Cummins12V98]

Yes, they changed a while back. Both state the same standard, ISO SO 4548-12, but at 99% Amsoil now states 20um and Donaldson states 15um.

I haven’t looked into it too much thou as even at dealer cost the Amsoil filters are more expensive.

I like to buy the AMZ/OIL filters because the blue does not look as good as the Black.

 

[BigPapa]

We're using the Baldwin BT7349 on our fleet trucks. How does it compare to the Donaldson?

 

[JR]

This is a good place to bookmark for future filter purchases. They are currently not available but were just a week or so ago when I looked for a friend who was searching for something in stock. Prices have always been competitive.



https://www.crossfilters.com/produc...ull-flow-donaldson-blue?variant=7195152220207

 

[Cummins12V98]

AMAZON, that's a really good price for TWO filters.

Donaldson DBL7349 Lube Filter (Pack of 2)
$21.34

 

[Cummins12V98]

AMAZON, that's a really good price for TWO filters.

Donaldson DBL7349 Lube Filter (Pack of 2)
$21.34

I just ordered two for a friend, smoking DEAL.

 

[Turbo Terry]

Yes me two