There is no loss at all.

 

Not going to argue with you, but like I said, even the Amsoil Tech Support team admits that there can be pressure loss (and resultant reduction of full flow) through the engine block if the bypass system is plumbed with long hose runs. That doesn't mean that there is always a pressure loss, just that it is a potential that is partly due to thier higher bypass flow rates (10% of total oil flow). That's their statement, not mine.

 

I asked the Oil Guard people about this. Here's the reply I got;

Hose length has no effect on oil pressure, as we are not interfering with the full flow system and are only diverting one quart per minute from the total flow (8 – 10 gpm). The hose could be fifty feet long and would not reduce oil pressure. When you hook up your system and check your oil pressure it will be the same. Thank you for the inquiry.

Best Regards,

Shelly

OilGuard Customer Service

I really do like Pete's installation and I copied it on my truck, so my hoses are only about 18" long. Maybe not an issue, but less hose under the truck can't be bad.

 

Thanks for the compliment, firemedic. The hose length issue I have referred to was in reference to the Amsoil setup only, and, like I mentioned, it was the Amsoil reps who told me that. perhaps they have some bad information regarding their system. Perhaps it depends on whether the install is for the 6 or the 7.3 - I know the return hose location is different for these two engines.

Regardless, what you've dsicovered from the OilGuard folks serves as excellent encouragement regarding your and my choices about going with their setup. And you're right... shorter hoses minimize snag potential anyway.

Also, I did a detailed inspection of my OilGuard installation while I was under there this past weekend (doing the in-tanks and fuel lift pump installation), and everything looks as secure as it did when I finished the install back in January (11,000 miles ago). The bypass canister is a little dirty from road dirt due to driving in the rain, but that is inconsequential.

Also, I don't want to give the impression that I'm dead against the Amsoil system. I've read about excellent filtration from their system. I've read of folks who are very happy with it. I bought it to begin with myself, but returned it due to what I read and heard about the potential oil pressure issue, and decided to be conservative and reduce this potential by going with the OilGuard unit instead. Shoot, I'm even running the Amsoil 5w40 DEO oil right now and am getting excellent results with it. I just wanted to share the results of my investigation in the issue when I was choosing which one to go with in case others may share the same concerns.

 

The issue with the amsoil unit was only for the dual bypass system. The full flow filter head they were using can't flow enough oil to support the PSD. The filter base they were useing was the same as all the older gas engine ford. The PH8A filter type. I think it had a 5/8" inlet. compare to the 1 inch or more these need. Amsoil no longer recommends the dual bypass unit where it relocated the full flow filter to be used on the powerstrokes. But the single bypass filter only unit is ok.

 

Pete,
Where did you get the spacers to install the bracket for the Oil Guard? I'm in the process right now of finding a suitable location for the bracket. The Oilguard instructions are vague and the picture of it mounted is not the best quality.

Thanks,
Chris

 

In copying Pete's install, I used 1" x 1" MIP nipples

 

I have an oil pressure gauge already installed in the port where the pressure is tapped for the filter. Has anyone used a "T" to be able to retain the oil pressure gauge line as well as the oil filter input line? Thanks for any advice....Dave

 

I simply used either 1"x1" or 3/4"x1" pipe couplings for mine... can't remember the size. If the larger ones fit, which I think they will, it will provide a mroe stable contact area once you tighten down on the bolts.

firemediceric's use of 1" nipples will also certainly work.

Dave, I don't see any problem with using the tee like you suggest. It should work just fine.