Amsoil 10w-30 vw 1.8L

[Bushmasterdcm]

Hi, This is my first post to the forum and I am hoping to solve a problem with my oil analysis.
I seem to have a high lead content (sould be 2ppm)in the past two oil samples however the silicon levels are fine along with iron. I drive this vehical about three to four times a week about 70 miles a day 75% of highway diving at 4000 rpm. This is my first run with Amsoil and before I move on to another oil I figured I would let the forum look it over for opinion. Thanks,

Rick

AMSOIL 10W/30
Engine: vw 1.8L
Mileage on engine, 70,000

Lead increased again in this sample after an extended oil use of 9,040 miles. The extra
miles account for some of the increased bearing wear, but lead should not be reading this high. All
other wear is in the normal range for this type of engine. The viscosity was slightly high, possibly from
the extended oil use. No antifreeze, fuel, or water was found to cause a viscosity shift. The TBN read
3.6, showing that some active additive remained in the oil. We would suggest cutting back a little on
the miles of use until lead drops down. Try running 6,000 miles next time.

SAMPLE DATE 4/04 6/04
MILES ON OIL 6000 9000

ALUMINUM 2 2
CHROMIUM 1 1
IRON 6 7
COPPER 6 7
LEAD 9 16

TIN 3 3
MOLYBDENUM 5 3
NICKEL 0 1
MANGANESE 0 0
SILVER 0 0
TITANIUM 0 0
POTASSIUM 0 1
BORON 33 27
SILICON 8 7
SODIUM 4 5
CALCIUM 2100 2095
MAGNESIUM 667 633
PHOSPHORUS 866 766
ZINC 1094 948
BARIUM 0 0

 

[Al]

I'd like to see your fuel dilution, viscosity, inlolubles numbers. Yea lead is higher but I wouldn't be that concerned yet. I doubt that another oil will improbe on Amsoil.

 

[dropitby]

What kind of oil have you been useing.Is your engine a turbo !

 

[Mickey_M]

quote:

---

Originally posted by Bushmasterdcm:
Hi, This is my first post to the forum and I am hoping to solve a problem with my oil analysis.
I seem to have a high lead content (sould be 2ppm)in the past two oil samples however the silicon levels are fine along with iron.

---

What kind of car is it and what kind of driving do you do?

Lead usually involves babbit type bearings, although in the days of leaded gas it could have meant you were getting blowby and needed a ring job.

It could mean you recently changed from mineral oil to a synthetic, and the synthetic is cleaning out some old gunk containing lead. You could be experiencing detonation which is overloading your rod/crank bearings.

It doesn't look like an emergency, so maybe your next oil analysis after changing the oil filter will show an improvement.

 

[Bushmasterdcm]

Here are some more numbers:

fuel dilution,0.5
viscosity, 66.9 Should be 59-65
inlolubles, 0.3

1989 VW fox 1.8L
Non Turbo Engine, Altough would be NICE!
Mostly highway driving 80 MPH @ 4200 RPM

Used Castrol 10w-30 GTX before and changed every 3000 with filter.

Interesting point from Mickey on oil still cleaning out deposits left from the dino oil.
Is it posible even after a good engine flush?

 

[Bushmasterdcm]

I used the wix filter and now I use Amsoil SDF34.
I also have but not tried yet is the Mann W719/5 with internal valve to hold oil in the the system for startup.

 

[Spector]

You know, it all depends. I recently received a comment back from Blackstone on my Camry, lead too high. Well, it is relative, I have over 15 UOA on this engine (Blackstone has seen only two samples) at approximately the same mileage and the ave lead PPM at 7500 miles is 26 ppm. Yep., ave of 26 PPM for lead. People on this board would cringe at that. You see, the trend for this engine is high lead, at least for me. Do I care what the lab says etc. no, the engine has 167, 000 miles and runs fine. Plus, the lab nor anyone else knows how to reduce it!!!!!!!!

DO not assume that 9 or 16 ppm of lead is high, **** , that is low for may cars. Look at the trend! Plus, on a lead per 1000 miles the wear is basically constant not increasing. Labs should look at the wear/1000 miles, none of them take the time or effort to do so.

IMO you are over concerned with the lead!

[ August 21, 2004, 01:42 PM: Message edited by: Spector ]

 

[kickster]

I think 10W30 is way too thin for this engine.
At 4000 RPM constant high way driving your oil should be around 120C ~245 F. 10W40 will thin out at that temp. I suggest you use at least a 40 weight or maybe 50!

My jetta with same engine as yours did well with AMSOIL 20W50. These engines love high viscosity oil. They were designed in 1972 so they are not the most modern engine out there. Up the viscosity and you will have no problem.

 

[Al]

quote:

---

Originally posted by kickster:
I think 10W30 is way too thin for this engine.
At 4000 RPM constant high way driving your oil should be around 120C ~245 F. 10W40 will thin out at that temp. I suggest you use at least a 40 weight or maybe 50!

My jetta with same engine as yours did well with AMSOIL 20W50. These engines love high viscosity oil. They were designed in 1972 so they are not the most modern engine out there. Up the viscosity and you will have no problem.

---

Many engines run at 250F oil temp. I'm not saying a 40 wt. wouldn't improve things though-might be worth a try.

 

[kickster]

Those engines are designed to use 30 weight oils. His VW engine is not! a 70s designed engine does not use the same oil the modern engines use.

 

[dropitby]

With 3000 mile OCI it shouldn't be too bad. Did you use a good filter or change it at any point. Perhaps trying a Pure One and check the oil at 5000 may bring down the levels.

 

[Quattro Pete]

I agree with others - I think I'd try a thicker oil here and see what happens. It won't hurt anything, but it might just help - who knows? So, how about Amsoil 5w-40?

 

[Bushmasterdcm]

I just bought 4 quarts of Amsoil 5w-40 Euro and plan to give it a go after this run with the 10w-30.I will post a follow up analysis.Thanks to all that responded.