Infiniti G35 w/ vq35 engine bypass & pre-oiler install

[unDummy]

I would also think that those "wear metals" will be filtered out by the bypass.

If there are any new 'mechanical noises' with the dual bypass, I'd yank it in a hearbeat.

Two oil PSI gauges(one before and after) your dual bypass will give you the info you need. And, you can swap in a single filter full flow mount for comparison.

Also, all that added plumbing/filtration/... will increase the oil capacity. Make sure you check your oil hot and as soon as accurately possible after engine shutdown. Don't let the oil drain back to the pan from the filter/hoses/...
Overfill the oil by a pint to see if the 'noise' disappears.

Does the VQ35 use oil jets to cool the bottom of the pistons? If it does, lower oil PSI could cause ping/detonation from overly hot hotspots on the pistons. Toss in a bottle of "octane booster" at your next fillup to see if noise disappears.

 

[bythabay]

quote:

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Originally posted by unDummy:
I would also think that those "wear metals" will be filtered out by the bypass.

If there are any new 'mechanical noises' with the dual bypass, I'd yank it in a hearbeat.

Two oil PSI gauges(one before and after) your dual bypass will give you the info you need. And, you can swap in a single filter full flow mount for comparison.

Also, all that added plumbing/filtration/... will increase the oil capacity. Make sure you check your oil hot and as soon as accurately possible after engine shutdown. Don't let the oil drain back to the pan from the filter/hoses/...
Overfill the oil by a pint to see if the 'noise' disappears.

Does the VQ35 use oil jets to cool the bottom of the pistons? If it does, lower oil PSI could cause ping/detonation from overly hot hotspots on the pistons. Toss in a bottle of "octane booster" at your next fillup to see if noise disappears.

---

I only hear the noise when I lug the engine.. so perhaps it is normal. When I went to a drive with an infiniti service writer, he too thought that the noise was the result of me lugging the engine. Later an infiniti tech took the car for a test drive and said it sounded normal.

I called blackstone labs to confirm the bypass filter myth (removing wear metals) and they said to me that the Amsoil Bypass filter system would not remove the wear metals from the oil. Also, the description of the bypass filter system on amsoil's website says nothing about their bypass system removing wear metals.

 

[unDummy]

Whats the point of a bypass filter that doesn't remove wear metals or wear particles

If "wear metals" are particles and if they're over 1 micron in size, will they not pass through the filter

 

[Gary Allan]

unDummy ..even though a bypass will reduce the larger contributing abrassives ..it won't remove the particle sized resultant wear metals. If you look at the PC UOA ..you still see a good number of less than or equal to 5um particles ..but virtually no 10um or 20um particles. One would reason that the typical bypass isn't setup in a full flow situation (very difficult without it being very large ..then it's not a bypass, but a full flow) hence some larger particles will be allowed to recirculate for some amount of time and cause some resultant wear.

 

[bythabay]

Just got my used oil analysis from blackstone:

aluminum 1
chormium 1
iron 8
copper 15
lead 2
tin 3
moly 11
nickel 0
maganese 0
silver 0
titanium 0
potassium 1
born 40
silicon 23
sodium 1
calcium 1940
magnesium 642
phosphorus 866
zinc 1101
barium 1

As you can see, the only wear metal which was high was copper. Other than that, all wear metals were at or below average. I guess I have nothing to worry about since wear from the bearings was 2 compared to the average of 5.

Blackstone recommened I keep chaning the oil until my copper and silicon levels drop to an acceptable level - then that is when I can keep the oil in because water was %0.0 and insulubles were 0.1 - just have to let the engine wear in before extending drains I guess...

 

[Winston]

Why don't you post your used oil analysis in the used oil analysis section, along with mileage etc. You might get some good feedback.

 

[The Critic]

quote:

---

Originally posted by bythabay:
Just got my used oil analysis from blackstone:

aluminum 1
chormium 1
iron 8
copper 15
lead 2
tin 3
moly 11
nickel 0
maganese 0
silver 0
titanium 0
potassium 1
born 40
silicon 23
sodium 1
calcium 1940
magnesium 642
phosphorus 866
zinc 1101
barium 1

As you can see, the only wear metal which was high was copper. Other than that, all wear metals were at or below average. I guess I have nothing to worry about since wear from the bearings was 2 compared to the average of 5.

Blackstone recommened I keep chaning the oil until my copper and silicon levels drop to an acceptable level - then that is when I can keep the oil in because water was %0.0 and insulubles were 0.1 - just have to let the engine wear in before extending drains I guess...

---

How many miles on the oil and how many miles on the car?

MW

 

[wrangler]

bythabay,

i wanted to use the Amsoil pre-oiler in my car as well but didn't because it seems to hold a very small amount of oil... To me, it seems that a tenth of a quart of oil isn't enough to effectively pre-oil any engine...

When the ignition is on, does the oil pressure gauge actually register any pressure? And if so, for how long?

 

[Ugly3]

quote:

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Originally posted by Gary Allan:
unDummy ..even though a bypass will reduce the larger contributing abrassives ..it won't remove the particle sized resultant wear metals. If you look at the PC used oil analysis ..you still see a good number of less than or equal to 5um particles ..but virtually no 10um or 20um particles. One would reason that the typical bypass isn't setup in a full flow situation (very difficult without it being very large ..then it's not a bypass, but a full flow) hence some larger particles will be allowed to recirculate for some amount of time and cause some resultant wear.

---

Are you saying that a used oil analysis with no bypass installed would have been approximatly the same?

 

[Dick in Falls Church]

Wramgler--
There is plenty oil in the pre-oiler to provide the necessary protection.

Some time ago, there was a report on the board which showed pictures of the oil pressure guage at startup, before and after installation (as I recall).

 

[theguru]

quote:

---

Originally posted by bythabay:
I actually went down to the dealership and showed the service writers and techs the work I had performed (I just couldn't resist). To my surprise, everyone was really impressed, asked me TONS of questions on how to perform the install, and overall I recived LOTS of praise. I don't believe they will compain too much if my engine fails - at least they'll know it's not the oil's fault - and we all know bypassing & pre-oiling are suprior not having anything but a stock system. Additionally, they said as long as I had used oil analysis done at the scheduled intervals, they wouldn't hassle me - hence I would have proof I had maintained the oil and if for any reason the pre-oiler or bypass was doing harm, the UOA would show it.

---

So, do you have this in writing? It is not the dealer that approves the warranty work, but the manufacturer.

Apart from that, what happens when the staff change.

 

[bythabay]

I don't really care actually... I don't abuse the engine, I perform UOA regularly... if the motor fails due to lubrication related issues I'll blame myself for not taking the neccessary precautions to make sure my "modification" was appropriate.

I also inspect the hoses regularly for wear.. i just insulated them with some heater hose to prevent any kind of hose rubbing.

 

[bythabay]

quote:

---

Originally posted by Michael Wan:

quote:

---

Originally posted by bythabay:
Just got my used oil analysis from blackstone:

aluminum 1
chormium 1
iron 8
copper 15
lead 2
tin 3
moly 11
nickel 0
maganese 0
silver 0
titanium 0
potassium 1
born 40
silicon 23
sodium 1
calcium 1940
magnesium 642
phosphorus 866
zinc 1101
barium 1

As you can see, the only wear metal which was high was copper. Other than that, all wear metals were at or below average. I guess I have nothing to worry about since wear from the bearings was 2 compared to the average of 5.

Blackstone recommened I keep chaning the oil until my copper and silicon levels drop to an acceptable level - then that is when I can keep the oil in because water was %0.0 and insulubles were 0.1 - just have to let the engine wear in before extending drains I guess...

---

How many miles on the oil and how many miles on the car?

MW

---

3K on oil and 3K on car (a lot of "break-in" driving if you know what i mean... )

 

[bythabay]

Had an infiniti tech check out my "engine noise" turns out its normal and coming from the trans (something to do with the design)...

Hooking up the bypass after I hit 10K miles.. have 5K miles right now running 4qts of Mobil 1 0w40 and .5 qt of Amsoil HDD

At 10K i'll drain, send a sample to blackstone, and hook up my bypass system again and fill the crank case with 5 qts of the Amsoil HDD

This will mix with the ~2qts of Amsoil ASL that I have left over in the two filters and pre-oiler from when I first installed everything.

I improved on my install by insulating the oil hoses with heater hose (to prevent rubbing) and I ordered a short 90 degree fitting to improve the oil filter adapter mounting installation.

 

[bythabay]

If I perform an oil analysis, will it be able to tell me for sure if the bypass filter is reducing engine wear?

What I mean is... is it possible that it is reducing wear in such a way where an oil analysis would not be able to show it..?

 

[bythabay]

quote:

---

Originally posted by wrangler:
bythabay,

i wanted to use the Amsoil pre-oiler in my car as well but didn't because it seems to hold a very small amount of oil... To me, it seems that a tenth of a quart of oil isn't enough to effectively pre-oil any engine...

When the ignition is on, does the oil pressure gauge actually register any pressure? And if so, for how long?

---

I had a mechanical guage hooked up in place of the dummy sender unit and pressure was exactly as it should have been as specified by the factory service manual. While I had the guage hooked up I wanted to see if the guage would register a pressure change based on the pre-luber, and it did not... my understanding after speaking with the amsoil tech folks is that the amsoiler doesn't pressurize the oil, but only makes sure that the parts are freshly coated with oil, as if the engine had recently been started.

 

[bythabay]

quote:

---

Originally posted by Ugly3:

quote:

---

Originally posted by Gary Allan:
unDummy ..even though a bypass will reduce the larger contributing abrassives ..it won't remove the particle sized resultant wear metals. If you look at the PC used oil analysis ..you still see a good number of less than or equal to 5um particles ..but virtually no 10um or 20um particles. One would reason that the typical bypass isn't setup in a full flow situation (very difficult without it being very large ..then it's not a bypass, but a full flow) hence some larger particles will be allowed to recirculate for some amount of time and cause some resultant wear.

---

Are you saying that a used oil analysis with no bypass installed would have been approximatly the same?

---

Yes, I think gary allan was correct... My wear after twice the oil interval was only slightly higher with the bypass unit disconneted... copper even dropped significantly... however this is a normal trend for the engine and the other wear metals were just a tad higher.. makes me wonder if the bypass even did anything beneficial...

Now that I think about it though, my most recent analysis was with the engine broken-in.. whereas my initial analysis with the bypass was with the engine's first oil change.. taking that into consideration the bypass unit eliminated a LOT of potential unnecessary break-in wear..

my initial analysis with new engine only 3k miles on the engine and the oil bypass & pre-luber connected):

oil analysis thread

my recent analysis with the engine broken in and 16k on the engine and 6k on the oil (bypass & pre-luber disconnected).

oil analysis thread

 

[bythabay]

Also I'd like to note that typical starting values for amsoil series 3000 - the oil that i'm using for this application - are as follows:

Iron 3
Copper 1
Lead 1
Aluminum 1
Silicon 2

referenced from here.

So this would mean my true initial values were:


Aluminum 0 !
Iron 5
Copper 14
Lead 1 !!


for an engine with only 3k miles on itself and its oil I'd say those are amazing wear numbers..