Oil Analysis

[qship96]

Sorry guys, thought I could cut and paste my latest oil analysis results to share with the group.....didnt work, so I will hand enter all the data a little later this evening.I am planning on running a little experiment,should prove interesting...details to follow!

[Infinitiguy19]

Nissan 4.5L (Q45) V-8 340hp4,511 Miles

Did you dyno the car to get that number and if so How?

Or were you thinking of the VK45DE

[qship96]

No, that was the labs confusion of the newer horsepower rated 02-06 motor.

I will post results of the OIL analysis in a few minutes.

[qship96]

Ok, here are the OIL ANALYSIS latest results from Blackstone Labs.

Redline oil 1/2 10w-30 and 1/2 10w-40 mixture to yield a 10w-35 weight for summer driving. Oil was in use for 120 days and 4511 miles, and odometer read 216,542 at the time of sample and change on 8/24/08. Blackstones comment is wear looks admirable in this sample

Wear metals found in parts per million {PPM}Aluminum 0chrome 0iron 13copper 1lead 7tin 1

Additives in parts per million {PPM}

Good Goly miss molly {molybdenum} 731 nickel 1manganese 0silver 0titanium 0potassium 2boron 19silicon {used as an additive and DIRT} 11sodium 17calcium 2694magnesium 9phosporus 1046 zinc 1245 barium 0

Vicosity at 100 degrees C 12.7flashpoint 405 degrees F.fuel Less than 0.5%antifreeze 0.0water 0.0insolubles 0.3%

Here is where the experiment part comes in....I have always used the Infiniti 15208-60u00 oil filter, changed at each oil change interval, including for the above oil run. I changed the oil and again installed Redline but have switched to the new fancy Amsoil EAO38 synteq all synthetic element filter so raved about on another site, supposidly the finest filter on the market, and good for 25,000 miles or one year, bla bla bla- you know the Amsoil hype!

Well I plan on running this new oil/filter for the same 4500 miles, drainig the oil and catching a sample and seeing if there is any measurable decrease in wear particles attributed to the filter....then refill with new redline oil running another 4500 miles ON THE SAME USED FILTER and testing again.

Will the amsoil filter work better as the miles add up on it and it develops a cake of debris causing finer and finer filteration, or will it become clogged in 9000 miles, go into bypass and show MORE wear....we will find out

[mcrews]

Thought I would post my results from an 02.They list my engine as Nissian 4.5L V-8 340hpI run traditional multi-grade for high mileage cars.

02Q45 130,000 my averages over 60,000 miles 5 testshere 3 Aluminum 0 1 chrome 0 9 iron 13 5 copper 1 8 lead 7 0 tin 1

Additives in parts per million {PPM}

85 Good Goly miss molly {molybdenum} 731 1 nickel 1 2 manganese 0 0 silver 0 0 titanium 0 0 potassium 2 16 boron 19 12 silicon {used as an additive and DIRT} 11 8 sodium 17 2047 calcium 2694 7 magnesium 9 611 phosporus 1046 784 zinc 1245 3 barium 0

10.86 Vicosity at 100 degrees C 12.7395 flashpoint 405 degrees F. < 0.5 fuel Less than 0.5%0 antifreeze 0.0 0 water 0.0 .5 insolubles 0.3%2.3 TBN

Modified by mcrews at 10:21 PM 9/17/2008

[qship96]

Your results look very good and very close to mine.....interesting in that my engine has almost 2x the miles on it compared to yours, not sure what to make of that???? The only area I note deserving attention on your results is that your insolubles{0.5%} are creeping close to the recommended max of less than 0.6% {supposively an indication of oil filter efficiency according to Blackstone, and one of the key numbers I will be monitoring with my experiment planned using the Amsoil EAO38 filter}

What oil filter have you been using, and how long{in miles} have your OCI`s been?

[mcrews]

Well, I run fram high mileage filter.I really should call joe and get 6-8 to have on hand some eom filters.

I am really a beliver in frequent oil & filter changes.I ran the analysis on my daughters new 07 Kia sportage v6 at 15k and then 34k.copper was 110 then dropped to 27iron was 32 then dropped to 23.alum was 7 then dropped to 5

I'm about to send another sample on her here at 38k.

my 99 jag vdp w 119,900runs 9 on copper and lead, 3 on iron and 2 on alum.

[Q45tech]

Oil analysis is great if you have a complete history since brand new but starting near middle or end of engine life is always questionable since you don't know the bearing thickness of each layer in tri layer bearings.

Any lead is bad since it can only come from bearings, same with copper.

[mcrews]

thanks for the input. what it has taught me, imho, is to change oil religuosly!!!!!!

[3Q Jay]

thanks for posting up there qship. afaik, you and i are the only ones to do this on the vh45de.that's a lot of moly there in that redline.

as i recall, you have historically had (relatively) high iron. is this an attribute of the redline mixture--or your engine? as we discussed before, silver has (relatively) high nickel at 1-3ppm on samples, while yours, blacq, and my vh41de are in the 0-1ppm range.

does this mean you have exhausted your 60u00 filters? i never got my hands on any i think Brian has a few, and Daedalus (the dog ) has about 20 sitting in his garage. will be interesting to see this EaO results. i have run M1-208 exclusively on my 45s since i've had them.

[qship96]

I still have 5 of the 15208-60u00 filters left, but bought 4 of the Amsoil eao38 to experiment with after reading all the hype over at bobistheoilguy site- should be interesting! My Iron numbers are pretty consistant, and there is alot of theory about the reasons Redline {and some say mobil1} show slightly elevated numbers....not sure if I buy into them though!

You are correct,very few vh45de data from other owners available to compare with. For 217K miles on my motor,I am very happy with both my results on paper and in the way the engine runs.....shame the engine will outlast the body

[MinisterofDOOM]

Thanks for posting this thread! My Q rolled over 200,000 miles this morning, the perfect time to do a test. I ordered one of Blackstone's test kits. Unfortunately I recently changed the oil, but We'll see how the car is doing in about 2000 miles.

I think I'll order another kit to have the Max tested as well. With 250k on it, I'm especially curious to see if there's any sign of antifreeze or excessive fuel in the oil.

[qship96]

Be sure to follow the directions/tips on "catching a sample" and be extremely careful as to keeping debris/dirt out of your sample to get accurate results!

Careful, as once you start sampling....it can become addictive!!!! Provides good entertainment and a barometer of your overall engines health.

[3Q Jay]

ok, dibs on your 60u00 filters when you ditch the g50. not that i want you to , but it seems you are ready to move on.

[qship96]

I have no intention of ditching the Q.......wouldnt have stocked up on 18 quarts of Redline D4 ATF and 60 quarts of redline oil.....new Odyssey battery......4 Eao38 oil filters, 4 new Michelin Exaltos just this week bla bla bla if I wasnt planning on driving it til it dies! My initial plan when I purchased the Q was to keep it til it hit 250,000 miles.....I am at 218,022 so far.

What I wont do, is invest in major component replacement this late in the cars life.....no transmission/set of injectors/differential,etc....until one of those crap out, I will enjoy every mile I can get out of the old girl!

The main reason I will not invest in major parts replacement is the car is starting to rust in the usual Q weakspots{rear wheelwells and dogleg areas} and to fix correctly would be almost $3,ooo. As much as I want to, I dont think fixing the rust issue is a wise financial decision to persue.

None of the shops offer ANY guarantees on rust repairs, and if the car gets in an accident, the book value is so low the insurance would total it and you could never recoop that investment.
Modified by qship96 at 12:53 AM 9/20/2008

[xerexabante]

My dad used to use Red Line, Now he swithced to Penthosyn. He liked the Red Line I did to. But I changed back to Mobil 1.

[Razi]

I have a question that's been having me itch my head once in a while.What kind of additives do they add to high mileage engine oils, do they really help?

[Q45tech]

Most oil for high mileage engines tweek the viscosity to upper limit of grade.

10w-30 becomes a 12.49w 34.99 or worse the might sell a 15w40 and call it a 10w30 since few understand or bother with testing.

0w40 or 0w50 are the ultimate high engine mileage oils as opposed to a thin oil which migh deliver higher MPG.

[maxnix]

I still have 5 of the 15208-60u00 filters left.....shame the engine will outlast the body

I am down to my last dozen or so. Shame about the rust, but I would look for something else to put the engine into!

I think these engines will become a hot item for rebuilds as they have a stirling reputation. For a real nightmare, I saw someone overhauling AMG 500 heads (2 pieces, not counting VC) that looked like they were cast in Switzerland - lots of holes in the alloy like the cheese. And still pug and wire.

[qship96]

Infiniti really screwed up with the 90-96Q rustproofing...almost every single one I see here in Maryland has rust forming in exactly the same places.I think they finally got it right with the 97+ body, as I have not seen a single one with rust around here.

[Razi]

I'm so glad I'm in California, no rust on our Q45 (phew!)

About the oil, 0w-50 or 40, motor oil is good for high mileage engines because it provides good lubrication during cold startups and also after it gets warmed up correct?

[qship96]

I'm so glad I'm in California, no rust on our Q45 (phew!)

About the oil, 0w-50 or 40, motor oil is good for high mileage engines because it provides good lubrication during cold startups and also after it gets warmed up correct?

Plenty of rusty cars even in california/florida/Texas if you live on the coast.The sea mist air blows into every nook and crannie eating the metal from the inside out

Cant imagine needing a 50weight oil in a Q engine unless it is extremely worn.