Oil analysis on 1hdt with 15w40 amsoil (and on a delica with bypass system) (1 Viewer)

[romey]

Hi folks, just thought i'd share some figures and see if anyone would like to comment. i know the whole when to change the oil/filter with dyno vs synthetic, and bypass filters has been beat to death here. i'm just reporting what my numbers are showing. i have been using amsoil ame marine diesel oil 15w40 since i purchased my 91 hdj81 with under 50 K kms at the time. it's been receiving 10K filter change itnervals and 20K oil changes. i had done a bypass filter system on our l400 delica and started with oil analysis. just out of curiosity, i sent in a sample from the cruiser with 22K on the oil and 1 filter change at 10K. after that i spun on a new filter and fresh amsoil again (i'm at about 6 K in that oil now and it still looks half golden brown..) anyway, results...

and then here are 2 results on our delica after the bypass system was installed. unfortunately i did not get a chance to get a sample sent prior to the install. at the time, dyno oil was being used. the first is at 11K kms and 2nd at 15K kms...it's still showing that the oil is still good! i was planning on changing just the bypass filter at 15K kms and resampling again.

notice the warning/yellow highlight for lead(pB). think i may just change that bypass filter now for piece of mind. what i could do then is change the bypass filters at 15K intervals and the oil and regular filter (which is almost double the size of the filter in the 80) at 30K... i've heard of numerous reports of the same oil being good up to well over 40 K kms.

anyway, guess it's a testament to the amsoil synthetic as well. i can't imagine what the numbers will be like after i do a bypass on the 80 as well! if it's showing me now that my oil is still good at 20K kms (with 10K filter change), maybe it'll allow me to change the bypass filters at 20K kms and the oil, who knows, at 60K kms. or am i just blindly following these numbers???? this is a reputable company that big industries use, they have been very professional from day one. and we could talk about confounding variables with how the sample was taken, etc..

install of the bypass on the mitsu diesel here on another forum.

View topic - yet another bypass oil filter install . . . need advice | Delica Canada | Mitsubishi Van Club

lots of talk on trabold, amsoil dual bypass, and a few more systems. i'm using kleenoil after meeting a rep who i was buying diesel additive from, he talked about the whole process and sold me on it..and i read a few forums as well. i know, i know, why not just change the dang oil filter with dnyo at regular intervals....? well, i'm saving money and givin the engine love with better lubricants... i know this sounds anecdotal but i've been told by a few at how smooth quiet my hdt sounds, a friend just test drove it yesterday and said it felt like a brand new engine...but it still only has 147K on the clock.

care to comment? this is all new to me, but i get now why a few of the bus/ambulance/firedepartment/hydro truck fleets around my area and across canada are all using kleen oil bypass systems.
cheers.

 

[gerg]

Nice. I run a frantz myself. I will be switching to a motorguard in a while because I like its housing better. I notice your soot numbers are quite high. Personally soot alone doesnt bother me. I dont feel soot numbers alone betray the real dangers of soot. That is when the particles aggregate and form larger particles. From [FONT=Arial, Helvetica, sans-serif]1 µm and up are the sizes generally large engough to cause damage. Since most full flow filters only filter 40 [/FONT][FONT=Arial, Helvetica, sans-serif]µm, I like the bypass as they generally can do 1 [/FONT][FONT=Arial, Helvetica, sans-serif]µm and smaller.

How often do you change your full flow filter and bypass filters?
[/FONT]

 

[romey]

thanks gerg. yeah, still trying to understand the significance of all the numbers. thanks for that tidbit on the soot. i guess one can go nuts with studies upon studies and everyone's interpretation of what's too much or okay. intersting though how the soot is high on the delica with the 2.8 turbo intercooler diesel, takes about 6 litres of oil, and that's with the bypass. . . compared to the cruiser w/out the bypass (but larger volume of oil). i'm not sure how to interpret that and can only assume that volume has something to do with it (?). i remembered my old 2.4L hilux gettin dark much quicker too.

anyway, this is only my 2nd upcoming filter change. so my answer is changing the bypass filter now @ 15 k kms into the most recent oil change. which is why i got the 2nd test done to see if it was close to a change. as mentioned earlier, i'll see how the 2nd bypass filter does and figure out when i should do a sample of that. i'll eventually add about a litre of oil after that filter change, and could take that to 30K and maybe i'll change everything then again including the regular filter.

i've heard great things about frantz. how often did you change yours on your frantz set up? what engine? but in the end, i think we can both agree that we can choose to be conservative with the changes or push the limits a tad. it wouldn't bother me if i only ran the oil for 30 k with 2 filter changes, i'd still save money..

btw, i'm still kickin myself for not gettin that 2nd sample sooner at 11K kms to compare dino with bypass and amsoil with bypass... at least i know numbers are within acceptable ranges. possible to assume as well that the numbers exponentially go up as the oil gets dirtier.

 

[gerg]

I change my full flow about every 6k (total cost about 10$ with oil) or so and the bypass every 3k (total cost 5$ with oil). They don't suck up much oil and I haven't gotten around to doing oil analysis so I am conservative on this stuff. I guess I should sample some and see whats going on. I change the whole system yearly. The overall cost is less than dino with regualr changes and I get to run better oil with good additives ,moly and zink cost about 25$ with system change.

 

[romey]

cool. what's the capacity of your bypass and what engine again? the kleen oil system i have can filter up to 16L of oil. it's the 2nd smallest unit that the company carries (and only makes up 10% of the companies sales). the smallest one does up to 8L i think. (what also sold me on it is that the rep has the smallest filter on his tdi jetta which has well over 650K kms now, still ticking, and the engine/turbo has NEVER been touched.. outlasting the tranny which has been replaced twice. he changes that bypass at 15K kms ). anyway, i have a feeling you can probably extend those change intervals....but you gotta get a sampling analyzed so you know for sure. my understanding is the full flow/stock filter get's changed only when the oil comes out as it's almost redundant b/c the bypass get's down to 5 or 1 micron..

 

[gerg]

Your filter element looks to be the same physical size as mine. I use a toilet paper roll. I know that sounds retarded, but it works. I change the full flow filter at regular intervals and not extended as I worry the filter element might degrade over time and not catch a catastrophic particle before it sends it to the system. The woven elements you get are of higher quality and will filter sub micron most likely, but I change mine sooner and get them for close to nothing. Its kinda of a trade off.

 

[sailor]

We use Finning Caterpillar to do our samples and always seem to come out high soot. The guys at the Detroit Diesel dealership says not to worry as certain techniques of sampling seems to always return high soot as a rule. Perhaps your elevated soot is for the same reason? Then again a pair of 750hp 2 stroke 8V92TA Detroits aren't known for their, um, sophistication?

 

[markthemenace]

Romey, in your Delica thread, you mentioned in one post that you changed your Mitsu filter AS WELL as your Kleen Oil one. So I'm assuming that when you installed the new Kleen Oil one, you did not remove and plug the original?

Is that how your install is on your Toy as well?

BTW, I almost bought a Deli myself, but went the Landcruiser route eventually. I was a member of that board for awhile too.

 

[Wheelingnoob]

Remember that when comparing the 1HD-T to a 2LT in the hilux the 2LT is a IDI diesel and the 1HD-t is a DI engine. The IDI engines are known for sooting up the oil faster than the DI engines. Not sure what the Delica has for an engine and injection type but that may play apart in the higher soot reading you are seeing.

 

[ForealBoreal]

The Deli is IDI.
I am awaiting an oil analysis for my 1hz. I am curious to know how it turns out.

 

[romey]

understood. to answer your question mark. the stock filter is only changed when the oil is change, just the bypass filters are changed before the oil is dropped. so what i have in my figures is with the stock filter and 1st bypass filter. the plan is to resample at 5K post. if you notice on the other thread, someone mentioned i could try and stretch it, but my lead is in caution and soot relatively high (good comment on the sampling process and idi vs di engines, thanks jeremy, that correlates with the figures). with these systems it boils down to your comfort level..i'm comfortable with changing bypass filters at 15K and at bare minimum would still come on top with changing the amsoil out and stock filter at 30K kms then starting all over again. it'll be the analysis that will determine what happens next. the irony of this all is the cost of the anyalysis is almost like the cost of an oil change! lol. but i just need to run a few samples once, then i'll have my routine figured out.

i'm curious what the nubmers will be like at the 20 K kms mark (with a 5K old bypass filter...) THEN i'll sample at 15K (or 30K on the oil) and compare the 1st and 2nd filters near their end. gosh, if i had the money, i'd sample every 1K kms and graph ALL the figures, then seeing how things change with a new bypass filter with older oil...vs 1st filter with fresh oil, lol.
BUTTTT, don't forget, about a half litre or so of oil will be added once the bypass filter has been replaced....so another confounding variable in place as we're adding cleaner oil in the mix!

the cruiser does not have a bypass filter yet! but i'm danged impressed by the numbers!! it's almost like i don't necessarily need a bypass if i'm comfortable with 20K drain intervals and 10K filter changes... (btw, i did not mention this, just for kicks, i changed the oil, put cheap diesel oil in the 1hdt for 1K kms, then seafoamed it before yet another oil change with the amsoil...i've read this before, and it certainly does clean your motor to another level vs just dropping the old oil out! or is that anecdotal again?! lol although it could also explain why my oil is the cleanest i've seen it at already 6K kms)