Found Original Protecto-O-Plate

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Old Apr 30, 2026 | 07:50 AM
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Found Original Protecto-O-Plate

As I'm slowly getting things back together with the VC, I came across an envelope with some documents.
Among them were the original owners manual and warrantee book with protect-o-plate. I totally forgot I had them.
I've heard it's sought after item for originality, and it does confirm the car came from Oregon.
What else can I find out about the car with this? I guess it could add a bit of value for the next prospective owner?



Old Apr 30, 2026 | 10:27 AM
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I don't think you can find out more than what it says on it. The name and address of the original purchaser, which is cool, especially if you want to try to track them down to find out more about the car's history. It also has the car's VIN. so you know which car it goes with.

The whole purpose of this was just to simplify service. You come in for service, give them this, they run it through one of those old-fashioned "knuckle-buster" credit card-reading machines, and they have your info without having to have you fill out the top of the service form by hand or go over to the car and copy down the VIN.

I don't know what those other numbers mean. I've never heard anyone translate them.

It's just a cool piece of the car's history that sometimes doesn't survive through time, especially if the car changes hands and the name on the plate is no longer the owner. A subsequent owner would just throw it away.
Old Apr 30, 2026 | 11:20 AM
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Perform a Google search you'll find decent info on the Oldsmobile Protect-O-Plate numbers. Here's a link to a discussion I recall following last year which describes some of the other numbers e.g. Dealership, Region, etc., etc.

Protect O Plate Decoder for a 1966 Oldsmobile

Old Apr 30, 2026 | 11:41 AM
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Originally Posted by 67VistaBlue
I've heard it's sought after item for originality...
That certainly was the case. But so few cars still have these with them that many jkudging organizations no longer even look for them much less give you points for having them.

But my VC is like yours--it still has original documents! And I keep it that way by only displaying copies at shows.
Old Apr 30, 2026 | 11:53 AM
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Originally Posted by VC455
...so few cars still have these with them that many jkudging organizations no longer even look for them much less give you points for having them.
Which is pitiful especially if it is a verified numbers matching vehicle w/ the original Protect O Plate. It really demonstrates the little respect I have for many judging organizations. I've seen people get points for the most ludicrous pieces of documentation e.g. an owner's manual. If a judging organization fails to provide points for a validated numbers vehicle Protect O Plate that judging organization is worthless, IMO.
Old Apr 30, 2026 | 12:27 PM
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Originally Posted by Vintage Chief
...pitiful...
Agree.

And those of us who have original documents should keep them with the title in an easily accessible spot with sale instructions.

If we decide to suddenly exit this plane, it will be easy for our relatives to pass them along.

I keep my originals in a 3" looseleaf binder in plain sight in my office. Its spine is labeled "1970 Vista Cruiser Documents." One of the dividers is labeled "Sale Documents."
Old Apr 30, 2026 | 02:53 PM
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Well I was looking over info, numbers, etc and came up with some good stuff.
From what I came up with is this is a powertrain number matching car
Look at pictures below and tell me what you think.
[img alt="Look at numbers on lower left
W354099G matches the number on cylinder head
OA-3596 matches number on the TH400 trans"]https://cimg7.ibsrv.net/gimg/classicoldsmobile.com-vbulletin/640x252/img_2088_10650bdeba9e32e8013a2f45575d1431d1105fd5. jpeg[/img]
Look at numbers on lower left W354099G matches the number on cylinder head OA-3596 matches number on the TH400 trans


Old Apr 30, 2026 | 02:56 PM
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From: New Milford,PA

Old Apr 30, 2026 | 02:58 PM
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Originally Posted by 67VistaBlue
That engine block pad number matches the Protect O Plate VIN# and should match the VIN plate located on the car.
Old Apr 30, 2026 | 03:03 PM
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Old Apr 30, 2026 | 03:21 PM
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Number on the right matches VIN# in door jamb
Number on the right matches VIN# in door jamb

Cool Stuff
Old Apr 30, 2026 | 03:37 PM
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Winner winner chicken dinner.
Old Apr 30, 2026 | 04:44 PM
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Need some help on the last to sets of numbers on protect-o-plate
910-KK (on left side)
PSM K (on right side)

In the lower right is 01100. That could be the milage?

I noticed on the 12 month service the milage was 19227.
Maybe the last digit is tenths?
[img alt="12 month service record
Shows Olds Dealer name"]https://cimg8.ibsrv.net/gimg/classicoldsmobile.com-vbulletin/640x480/img_2097_0f663959abd1d5fcefd2f15a7059aeee224fc49c. jpeg[/img]
12 month service record. Shows Olds Dealer name

Last edited by 67VistaBlue; Apr 30, 2026 at 04:46 PM.
Old Apr 30, 2026 | 04:46 PM
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Old Apr 30, 2026 | 05:00 PM
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I "think" 910 = Black Bench Seat (Vista Cruiser)

1967 Oldsmobile Cowl Tag Information Sheet
Old Apr 30, 2026 | 05:00 PM
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I say the 910-KK is the interior trim code (910 black standard bench seat) and KK is the upper and lower paint on the car - Aquamarine Poly
Pretty sure your right the 01100 is the mileage on the car at the time it was sold.






Old Apr 30, 2026 | 05:15 PM
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Another 2 matches;
Black bench seat and Aquamarine is the color (no woodgrain)

Thank you for the input
Old Apr 30, 2026 | 05:18 PM
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Total guess but maybe PSM K is Paint Side Molding (or something like that) which is also paint code "K"
Old Apr 30, 2026 | 05:39 PM
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Since we're on a roll, would tilt steering and the rally pac be on the cowl tag?
Those are the only options I can see.
I have every reason to believe they're original but can't verify
Old Apr 30, 2026 | 05:44 PM
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I think tilt steering was RPO Code = N33
Rally Pak RPO Code = U21

https://www.oldsmobility.com/old/options.htm
Old Apr 30, 2026 | 06:15 PM
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Here's the tag. Don't see those codes. But in the lower left corner I see 5Y .
Looks like a letter is partially covered with sealer to the left of 5Y.
Maybe The RallyPac and Tilt are just on the build sheet?
Old Apr 30, 2026 | 06:24 PM
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Right, maybe. I don’t know how the RPO code translates to a build sheet &/or cowl tag, sorry. Others will chime in, hopefully.
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