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1st col-4100mi. on oil at 43,398 miles 2nd col-4500mi. on oil at 31,919 miles Aluminum 3 2 Chromium 0 0 Iron 6 6 Copper 3 5 Lead 5 6 Tin 2 1 Moly 275 121 Nickel 0 0 Manganese0 0 Silver 0 0 Titanium 0 0 Potassium 1 0 Boron 103 68 Silicon 8 10 Sodium 3 2 Calcium 3414 3537 Magnesium 9 7 Phosph...

My air has gone kaput. Was not putting out any cool air so I got a recharge kit with gauge and some freon. When I went to put it in I noticed that the compressor was not cycling. I am reading 13.8 volts to the connector that goes into the back of the compressor. There is also a connector on the...

Which Schaeffers should I use for the following? 1. Travel Trailer with Dexter EZ lube axels 2. Boat trailer 3. Finish mower 4. Tractor chassis 5. Duramax chassis I have on hand some 221 and 274

Here are the results from the lastest analysis and the previous two. At 32k with 4500 miles on oil, 24k with 4000 on oil and at 15,600 with 5000 miles on oil. SUS visc.on latest sample was 75.9 and flashpoint was 445 with no fuel dilution. About 1/3 the miles on the last sample was pulling a...

According to Blackstone, my lastest analysis has Moly and Boron in it. Blackstone says this does not look like Delo as they don't use Moly or Boron. All the other elements looked basically the same as the other two samples I had tested except for copper which has dropped to normal.

My girlfriend has a 98 2wd Jimmy and it makes a terrible roaring noise. A tire store said it was the front hub bearings and showed her the loose play in it. But they want $800 to fix both sides. How difficult is it to replace them? I know that $800 is way too much. Anyone ever replace theirs?

I've gotten an SES code 0401 which is EGR Insufficient flow. This in on a 97 3.8 GM with 272k miles. What can this be? Something strange also is when I filled up, my low fuel light was on and it only held 10 gal. of gas. Usually it will hold almost 15. Any ideas?

Today my daughters water pump failed on a '90 Buick Century with the 3.3. Last week we put in some kind of sealer to stop a small leak around a gasket. I had replaced the water pump last year which turned out not to be defective in the first place. Water was seeping out of a very small place...

I'm a first time poster although I've been lurking around here for a good while now. Decided to go ahead and join in. Last night while discussing maintenance, I asked my friend what kind of oil he used in his diesel tractor. He said some kind of Havoline, that's what his daddy always used. I...