Any of you guys running the amsoil oil with bypass filtration? Are you or have you ran oil analysis , and if so what kind of drain intervails are you running?



This idea looks interesting to me but I havent took the plunge yet.

 

Ive got one. . .my oil does look a little less sooty. . .but oil analysis will tell. . .going to be doing that this weekend.

 

got it, did it and went 15k... analyized @ 7500 & then 15k. didnt make the 15k as it was contaminated and needed to be swapped out. (running amsoil bk11 & 15w-40 oil). I now go 10k on oil changes.

 

I just put a BMK11 on this week. There's a thread Iposted with pics. Never done analysis yet. Still running dino delo 400 15w40.Beendumping it every 5k. Supposed toput anew bypass filter every other oil change. Probably worth my while to do analysis and extend intervals I'm just gonna hold on that til I switch to full syn AME15w40in the eng. I'mat 13,000 miles now. Another change soonat 15K.Then amsoil syn at 20K plus a new bypass filterand start the analysis regimen running it for 20K + new filters (both) from then on out. Other than the engine I'm using amsoil in everything right down to the grease. I like it and don't mind paying a little more for the best. I've never seen any mpg gains I think that's just hype but I don't care about that.It's a true GroupIV basestock synthetic. The only other one is royal purplewhich isprone to shearing amsoil isn't. And no I'm not a dealer.

 

there have been a few threads lately about the bypass filters.

 

the bypass filter is supposed to last 60k miles and it's supposed to filter down to 2 microns. if the filter is clogged (no oil flow out of it), its clogged and should be replaced. when I changed mine at ~45k it was still flowing alot of oil.

 

Yeah yeah I know it's only money a new one every 20K aint that much

 

The basic question to ask yourself is:
does more filtering of tiny particles improve the life of oil,
or is it the Total Base Number (TBN) of the oil that fails first?

Bypass filters do nothing to improve the ability of the oil to neutralize acids
that come in with blowby gases past the piston rings

Do you spend you money changing the oil more frequently to keep the TBN high,
or do you spend your money on bypass filters that remove tiny particles that pass through the smallest spaces of the engine without doing much damage?

Where acids are not a problem
like in transmissions and differentials and power steering pumps
the challenge is different

 

Well heres how I look at it based on over the road trucking experience. The company I drive for runs class 8 trucks and changes the oilevery 25,000 using dino.Valvoline premium blue if you're wondering. They lease brand new trucks and run them up to 500,000 miles then trade them for new, been doing it this way forat least the past 10 years I've been with them onCummins N14's long ime agoand now ISX's,and never had any oil related issues on their engines. That's without bypass filtration. Cummins says 15,000 mile intervals is fine for theseISB engineson the light duty schedule7,500 for heavy duty.I think that is conservative compared to what the class 8 engines they build that I've seenare doing.Analysis is the only way to know for sure what your oil looks like TBN-wise but based on what I've seen driving big trucksI'm notafraid at all to run a good synthetic with my bypass up to 20K miles in my little daily driver pickup truck...