Havoline 10w-30, 3,275 mi, 99 Saturn 1.9 DOHC

[uconn1150]

This is the 2nd run with Havoline. The previous run (which was not tested) was for 1862 miles--I needed to flush out the "water" which had been found in the previous analysis. The UOAs are listed from latest to oldest. I had been using Schaeffer's but the wife only drives 3.5 miles roundtrip to work daily, so I thought that it was best to just change it every 3 months. I'm not impressed by this report. I may just go back to the 15w-40 and do once per year changes with LC. This run did utilize LC (LOL ZERO oxidation, but the oil is barely a 30w

).
Code:

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Havoline Schaeffer's Schaeffer's

10w-30 15w-40 15w-40

3275 miles 9703 mi 6956 mi

3 months 1 year 1 year

8oz LC&2oz/1k mi no LC no LC



Cu 11 25 15

Fe 15 87 40

Cr 0 1 1

Al 5 8 4

Pb 0 4 0

Mo 489 165 73

P 1101 1294 1126

Zn 1175 1732 1180

Mg 56 15 11

Ca 2725 3816 2538

A/F no no no

Fuel no no no

H2O no .3 no

Si 11 5 9

Vis 9.46 15.71 12.44

SAE ISO 30 40 30

Sulfur 19 38 9

Oxidation 0 46 25

Nitration 5 47 36

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I am not concerned with the Si, we did take 2 drives, one to Phoenix, and one to Albuquerque. Both had bad sandstorms. The air filter is a K&N; I'll still check it and just reoil it. Anyone ever remember the stretch from Deming, NM, to Tucson, AZ?

 

[Al]

Why go back to a 15W-30? Its normal for the 30wt. to shear down. Even if it sheared into the higher 8 cSt. it would be fine. No evidence of higher wear that I see. High irons seem to be normal for this engine. And your cr. and pb. are 0.

 

[uconn1150]

Thanks Al for your response. I was just thinking about that whole thing about changing the oil so often that the wear doesn't really change, or go down for that matter. What I am trying to say, is that if we mulitiply these measurements x4 ( meaning a yearly change) it comes out the same, or yikes, worse.

 

[Al]

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What I am trying to say, is that if we mulitiply these measurements x4 ( meaning a yearly change) it comes out the same, or yikes, worse.

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Yea, I guess I wasn't really looking at your big picture. Schaeffer's really does do a good job over a long period of time. I used to use the Schaeffer's and for some reason just stopped using it. Don't really know why. Maybe your idea is better than mine.

 

[uconn1150]

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Maybe your idea is better than mine.

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Not necessarily Al. That's why this site is here; for discussion, experimentation (observation), and analysis.

I read another thread where the poster said things have changed; I don't really think so. Ppl leave and then come back; we all need a break sometime.

Back on topic. I really don't know what to make of it. I have Havoline back in and will leave it til March. If it tests the same as this run, I'm going back to Schaeffer and try the 5w-40 for 6 month intervals. I service 4 or 5 vehicles and would like to use one weight. Hopefully the LC users will comment on the other numbers.

 

[The Critic]

How much make-up oil?

 

[uconn1150]

Quote:

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How much make-up oil?

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Not an ounce EVER!

 

[The Critic]

No way, I have to fill mine up every 2000 miles.

 

[m2200b]

I'd try 5-30 with the 3 mile trips and sheering to a 5-20 is probably in the right direction for those miles.

 

[ToyotaNSaturn]

"the wife only drives 3.5 miles roundtrip to work daily"

I think that, combined with with the water is why wear numbers are a bit high, but is trending downward.

You're definitely on the right track by using LC to prevent the sticking ring problem (thus why you have no consumption!).