I have used the LF 3374 (Synthetic Material Huge Filter). I understand that the LF 9691 is an upgrade to the 3374 because it has a venturi... Does anyone know the benefits?
Have any of you used the LF 9691 on your 7.3 ?

Thank you,

BBD

 

Neither one crosses with a NAPA 1734, WIX 51734, or an MC FL1995. These are the ones used on my 02 7.3L.

 

I heard that WIX makes a good filter.

I have used the LF 3374 without any issues.
I heard that the LF 9691 is better because it has a venturi.

BBD

 

I've used the Motorcraft FL1995 filter for the last 560,000 miles. It's worked just fine. Nothing wrong with trying to upgrade, but sometimes we put too much thought into things or fall for some marketing hype.

 

Same here... Well, not that many miles (only 270k for me), but same point. For a mere $10 it is hard to beat the FL1995. There may be better options out there, but for my 3500-4000 mile oil changes, the Motorcraft filter does its job well.

 

Third that. 285,000 miles here. Plus the FL1995 is very widely available at all kinds of store, parts stores, etc.

 

The motocraft filter does great and has great micron ratings too. Even on extended OCI it's more than capable. In fact, your oil will probably need replacing before the FL1995. The only additional filtration you could really benefit from is a bypass set up, but that's a minute savings.

Basically, by the time you even get into the extra filtration capacity of those premium filters, you should have already changed your oil, even with extended OCIs. I frequently ran my FL1995 to 10,000-15,000 miles.

 

Motorcraft #1995 Filter is perhaps the most efficient for your 7.3L I can't speak to others. But, in the past 10 years I saw many repairs turned down by Ford because aftermarket filters were used. Primarily on the Eco boost, Focus, and another that escapes me at this time of the morning.

To my surprise, Several service bulletins expressly state to change the oil filter if Motorcraft was not used prior to proceeding with engine diagnostics.

This may sound contrary to Physics, but larger mass media filters can actually reduce oil flow and oil pressure. One would think pressure is pressure. But, reading several reports, while contrary to my thinking, results were surprising.

I use what I believe to be better oils since the introduction of the engine, I have always used the OEM filters on all my motor vehicles.

Bob is the Oil Guy (Web site) has a lot of information you may want to review to make a more informed decision.

Just trying to help!

 

Thanks for all the replys and for sharing your experience.

BBD

 

Any filter does the job if you change your oil regularly in my OBS case and the 30+ trucks in the fleet 4k oil changes all well over 250k+ miles, using the cheap Fram's, STP, Autolite filters started using MC on fords, AC Delco on the GMC and Chitys, Mopar on the only two Ram trucks we have.

 

I was changing around every 5k, but after sending a sample to Blackstone, they Suggested that I could longer.

The LF 3374 is a huge fulter with synthetic media which is supposed to be full flow and have a smaller micron rating. The LF 9691 is supposedly synthetic material with a venturi, but I dont know the benefits of having a venturi.

I plan to start changing oil around 10k using one of these and T6.

Thanks again for sharing your experience.

BBD

 

I think I found my answer...

Fleetgard does make a filter that is a combination full flow and bypass filter.

Why By-pass Filtration Is Superior
With the introduction of combination lube filtration technology, Fleetguard® revolutionized the industry. As SAE 710813/790098 confirms, by-pass filtration reduces engine wear in the following key areas:

Upper connecting rod bearing shell
Lower connecting rod bearing shell
Upper main bearing shell
Lower main bearing shell
StrataPore™ Media
By implementing the revolutionary StrataPore™ multi-layered media in the 1990s, the combo filter was improved even more. StrataPore™ was introduced in the full flow section to work in combination with the stacked discs to remove the smallest dirt particles, which cause the mostengine damage. This configuration reducesengine wear by as much as 60% in some applications.

Venturi™ Combo System
The technology was taken even further with the introduction of the Venturi™ Combo. The OEM-approved Venturi™ allows the lube system to perform up to four times as long and remove up to three times the contaminants as a full synthetic filter. The patented Venturi™ nozzle provides a low-pressure zone for the oil to flow through the pleated media for increased efficiency. This innovative technology results in longer life and better performance for your vehicle. And, unlike its competitors, the Venturi™ Combo was tested in a real world environment, not bench tested.

Still not sure what it does, but it sounds impressive..

BBD