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Author Topic: oil analysis  (Read 1538 times)
Rube
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« on: April 21, 2006, 07:06:46 AM »

how much oil do i need and who do I send it to for an oil anaysis?

thanks
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kyle4501
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« Reply #1 on: April 21, 2006, 08:19:01 AM »

Call your local DD dealer, they should be able to help.

You didn't ask, but for others who may not realize it, a single analysis won't tell much.

An analysis is just a tool, like a compression tester, exhaust analyzer, torque wrench, volt meter, etc.

A series of them at regular intervals along with the maint logs will provide much more information concerning engine health and potential problems.

I have heard that a coolant analysis can be usefull also.

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I know you believe you understand what you think I said, but I am not sure you realize that what you heard is not what I meant. (R.M. Nixon)
Rube
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« Reply #2 on: April 21, 2006, 07:26:07 PM »

so... since I am going to look a a bus in the very near future - getting a quart from the bus and sending it to a DD dealer for analysis will not give me insight as to the condition of the engine since I don't have a series of analysis's over a period of time? Hope that made sense.
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pvcces
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« Reply #3 on: April 21, 2006, 07:41:51 PM »

Rube, the analysis does a couple of different things.

Any given one give you a snapshot and it must be read that way.

Several snapshots in sequence will tell you a story that goes beyond what any single snapshot will.

A single snapshot will tell you a lot about what's NOT wrong.

For what it's worth.

Tom Caffrey PD4106-2576
Suncatcher
Ketchikan, Alaska
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Tom Caffrey PD4106-2576
Suncatcher
Ketchikan, Alaska
kyle4501
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« Reply #4 on: April 22, 2006, 05:50:07 AM »

A single analysis can tell you some things. But what if the oil was recently changed? What if it was used oil that was put back in to hide a big problem?

I would do the oil analysis, just be careful about reading too much into one snapshot.

If you can drive the bus, take it for a 30+ min ride (longer is better, or so I hear Wink) & put it on the hi-way before you take the sample.

just my $.02 worth,

Enjoy the trip to look at the bus, and remember, there are lots of good ones out there, so don't settle for a basket case.
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I know you believe you understand what you think I said, but I am not sure you realize that what you heard is not what I meant. (R.M. Nixon)
akroyaleagle
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« Reply #5 on: April 22, 2006, 06:44:56 PM »

DD has a kit that includes everything you need to do the analysis except the postage. They're about $16 for everything. The postage from Alaska is only a couple of dollars.
If you've never done this try it once and get your eyes opened. It cost less than 5 gallons of fuel.

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Joe Laird
'78 Eagle
Huron, South Dakota
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