OK...so after my first year running with Shell Rotella 5W-40 syn and using two
Motorguard MG30's in parallel for bypass filtration i must say i'm pretty happy with the results. I changed the oil with 15k miles on it because of Blackstone's recommendation. My first oil sample was at 7k miles and came back excellent with the Lab saying " your filtration is doing a great job". Second sample after another 7k miles they recommended changing because lead creeped up to 10.
Insolubles were very low @ 0.2. If i changed my TP filter elements more often i probably could have gone longer. I changed my elements around every 5K miles
but the recommendation is every 3-4K miles. Sure is nice not having to deal with changing out 15 quarts of oil every 5k miles. Instead i change my filters and add two quarts of make up oil. Total time for change is 20 minutes.
I'd be interested on hearing what kind of results folks with the Oilguard system are getting as i almost went with their system instead.

 

Thats nice to hear, and it's nice to have you around again, you haven't been on much...


That makes me want to have bypass oil on my truck even more, because i like how much better it is for the engine. Do you recall how long the oil stayed honey color before turning black?

 

Yeah Nut, good to see you around again. Which bypass did you go with again? I remember it uses the TP.

Ditto on Kris's ?? Also, does your OA test for antifoaming additive levels?

 

Thanks Kris...can't say for sure how long the oil stayed cleaner looking but it never got really black like some folks report. Mostly seemed to have a slight
black coloring. I'm going to keep more of an eye on it this time around. Realizing
that about 2-3 quarts are still left behind in a full change makes me think it will
always start off with a slight shade of black which it currently shows after the
"full" change.

 

Jim have you noticed any sign of the additive package being filtered out of the oil in your UOA's. I have been trying to decide on a bypass system and have read where the sub 1 micron filters can acually filter out the additives in the oil? But from your analysis Lead at 10 after 15K sounds pretty good.

 

My Motorguard MG30's use a 4 1/4" roll(diameter) of Scott's tp. I've become an expert at spotting a 4 1/4" roll while riding the poreclain pony! The
wife always likes having a full tp roll to hand.
My OA didn't test for the anti foam levels that i can remeber but i'll re-read the report.

 

I think Alan is referring to the same concerns I have about a bypass.

 

This is a question that has come up at the BITOG forum too Alan. The filters are rated to 0.1 Micron filtration. Apparently NO additives except for certain aftermarket oil additives will be filtered out. I noted what filters i was using with Blackstone and they didn't seem to have any issue or concerns with crucial additives being removed. In fact, the cleaner you keep your oil the less of the additives are required to counter the negative effects of
dirty oil. The SAE also recommends bypass filtration of 1 micron or lower. Some of the big rig users run very expensive centrifigal sub micron bypass systems.

 

Thats where i read it at I just never saw any numbers from someone that did UOA's after adding the bypass. From the looks in your gallery it appears you have the filters mounted on the inner body just under the driver, Does being horizontal nit matter with these? 2. Are 2 filtes required for the oil capacity in the 7.3 or did you just get 2 for extra filtering? and finally How accurate do you have to be in sizing the "Roll" I would imagine if it where too small and not compressed properly it could come apart?

 

Doesn't matter how they're mounted. I did two so i would have longer element
change out intervals. The tapered ends of the housing seem to compress the roles nice and tight. Keep in mind these filters were originally designed for filtering compressed air which makes me think they're going to do a good job at anything else. Ralph recommends changing out a single element around 2k miles for a V8. Seems to me like a diesel with it's soot load would require sooner changes so i'm going every 3k miles with my dual elements(in parallel).
One thing i noted was you have to be careful of pinching tp in the gasket seal
and creating a leak. Also, the MG30's are better suited for a vertical mount due to oil drainback and ease of element change. Just couldn't find anywhere under the hood to mount the two filters.
Oh yeah, i guess the filters act as a supplemental oil cooler. Nice side benefit.

 

Thanks Jim, I think that about makes my mind up for me. I got a change coming up in about two weeks That will be a good time to add it. Just have to remember to start buying Scott TP for the house.