3800, Series II, M1 10W-30

haley10 · Mar 25, 2004

Miles on oil: 5,079
Miles on engine: 74,747
Gas: 87 octane unleaded
Oil: Mobil 1 10W-30
Makeup oil: 1/2 qt.
Additives: none
Filter: AC Delco pf47
TBN: 4.7

Aluminum 3
Chromium 1
Iron 9
Copper 13
Lead 3
Tin 3
Moly 68
Boron 119
Silicon 11
Sodium 5
Calcium 2979
Magnesium 10
Phosporus 776
Zinc 872

SUS 60.1
Insolubles 0.4
Flashpoint 400

Standard Blackstone report. Values not listed were zero.

This was run Jan-March 04. 2000 Buick Regal. Obviously another M1 report is not needed here at Bitog, but I wanted to check the condition of my engine and be assured I can work up to 8K if req.

This was the ist uoa for me on M1 and first fill. Previous oil was Castrol Syntec 10W-30.

Got Terry's analysis on it.

Schmoe · Mar 25, 2004

Looks good. Those 3.8l engines are worth their weight in gold. IMO, looking at the numbers, I'd say 8K is definently doable with this oil. Still a solid 30 weight.

Patman · Mar 25, 2004

Very nice report! Probably one of the lowest wearing 3.8s we've seen so far on here.

haley10 · Mar 25, 2004

quote:

Originally posted by Patman:
Very nice report! Probably one of the lowest wearing 3.8s we've seen so far on here.

Yeah, the day I get this report back, is the same day my Autozone loads up on GC. Now I don't know what to do.

I thought a bit more Visc. might be better, so I was thinking about M1 0W-40 and now GC 0W-30. Now I'm not so sure.

Schmoe · Mar 25, 2004

You know, I don't think you could improve much on these numbers. If it ain't broke, don't fix it applies here.

haley10 · Mar 26, 2004

quote:

Originally posted by Schmoe:
You know, I don't think you could improve much on these numbers. If it ain't broke, don't fix it applies here.

I guess maybe you're right. I became convinced that a more viscous oil might be better, but unless I have consumption issues, I may stay where I'm at.

I sdded 1/2 qt. because I filled a bit low for winter and added a bit much at 3k, so really no consumption.

T-Keith · Mar 26, 2004

Hmm maybe I should stick with the M1 10w30 in my 3800 too.

-T

buster · Mar 26, 2004

Excellent numbers. Can't do much better then this.

toyvwbenz · Mar 26, 2004

quote:

Obviously another M1 report is not needed here at Bitog

Thomas Pyrek · Mar 28, 2004

we need more reports from that engine though.

For the summer I'm switching over to Delvac 15w-40 in that engine. Still not sure what I'm going to run in the winter.

haley10 · Mar 28, 2004

quote:

Originally posted by Thomas Pyrek:
we need more reports from that engine though.

For the summer I'm switching over to Delvac 15w-40 in that engine. Still not sure what I'm going to run in the winter.

Let us know your results if you do a uoa. I like something I can run year 'round.

[ March 29, 2004, 02:07 PM: Message edited by: haley10 ]

buster · Apr 2, 2004

Look how low the iron is....??? Usually much higher with M1.

[ April 02, 2004, 08:43 PM: Message edited by: buster ]

TooSlick · Apr 2, 2004

I'd increase the drain interval by 50%, based on this data. With warmer weather arriving your oil contamination will decrease the TBn retention should be even better.

This 3.8L GM, V-6 is the engine used in the API, Sequence IIIF, high temp/high load test. Unlike the Vortec V-8's, this engine is very easy on oil. I suspect that is the reason why the API and domestic auto makers chose it. Try to run 80 hours @ 3600 rpms;oil temp stabilized @ 155C/311F; 100 Hp rated load with the 3.0L, Toyota V-6. I don't believe you could get ANY petroleum oil to pass the spec with that engine.

Editorial Comment:

The API,SAE and ASTM really, really need to consider using a DOHC, high output V-6 as one of their standard test engines. As it is, API testing has almost NO relevance for current Japanese and European engines. I'd look for ACEA "A3/B3/B4" or "A5/B5" ratings for any high performance, OHC or DOHC motor ....

TS

haley10 · Apr 4, 2004

TooSlick, I could not agree more. Using this engine for any relevant standard testing is a waste of time.

The North American consumer loses again, when API standards have no relevance.

haley10 · Apr 4, 2004

quote:

Originally posted by buster:
Look how low the iron is....??? Usually much higher with M1.

Yup, where did my iron go??

Blackstone shows 18 for Iron and 8 for lead on their universal averages. Copper is about the average.

This was my very 1st M1 run after changing from Castrol Syntec for 50K with short oci's.

We'll see what the next run on M1 looks like with warmer temps.

TR3-2001SE · Apr 5, 2004

Another excellent Mobil 1 Report!

Scott P · Apr 5, 2004

I'd love to get those numbers from my 3.8L. I guess I shouldn't beat on it so much and move out of the freezing cold north.

regalman · Apr 6, 2004

Hehe, my number didn't look that good on my 3.8, but I think it had something to do with my lead foot... oh yeah, and the supercharger bolted to the top of it.

http://www.belome.com/regal/regal1.jpg

Scott P · Apr 6, 2004

Regal...You bringing that leadfoot down to IDDV next week at Norwalk?

regalman · Apr 6, 2004

Nah, I've got no mods on the Regal. The only thing I really want to do to it is get rid of the &*^*&^* speed limiter.

I wouldn't mind getting my bike out on the track someday tho.

3800, Series II, M1 10W-30

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