Wagon test vehicle

This Olds is being used to test the claims of the manufacturer of some type of ceramic coating.

http://www.rvs-tec.ca/information/testcar/main.html

Pushing 407,142 km and running strong






Vehicle make: 1991 Oldsmobile
Model: Cierra Cruiser
Engine: 2.5L 4 cylinder
Mileage: 425,506km (Updated Nov 17.2008)
Purpose: To test the durability and effectiveness of RVS Technology™

 

407,000, eh? Just more proof if you treat 'em well, they return the favor.

 

i read that the motor was just barley working before they treated it. im trying to figure out if its just for 4 cyclinders or if it can be used on V8s

 

They sell a different sized bottle for larger or smaller engine.
This might make some sense if the engine is due for a rebuild and you didn't have the $$.

 

i smell a rat. i didnt know you could get a tech 4 in the wagon. thought the wagons were all v6.
#2 how are all the pistons top-dead-center?

 

Well I would hope that TDC isn't 2" down in the bore!

 

does 245,000 miles without a rebuild count? weve taken it apart 3 times to replace the seals but
never did anything else. (its weeped oil its whole life, straight from the factory)

 

well, maybe not top dead center but all the pistons in the picture are at the same level? wha?

 

you could get a 4 cylinder with the Celebrity wagons, and the Ciera, Pontiac 4000, Celebrity, Century were all the same car. Also 4cylinders in the smaller wagons. BUT the vin number on that wagon has a M engine code, which is a 3.1l v6

 

Hey its just like my car. Except mine has less than 100,000 miles on it. So I know it will last a long time. By the way 4-cylinders were not offered on the Cutlass Cruiser FWD A-body, just on the Cutlass Ciera sedan version. So it had to have the 3.1 L V6 which my car has, models prior to 1991 had the 2.8L V6.

 

The Canadian built cars may have had a 4 cylinder. But it is suspicious with all four pistons at the same level.

 

My understanding is that in a 4cyl engine two pairs of pistons run together, with one of each pair on the compression stroke, the other on the exhaust stroke.
So if they are in pairs they would have to cross the same plane about half-way down the bore.

 

thats not very far down the bore...maybe just the angle it is shot.

 

Perhaps, but again, as was previously pointed out, the VIN number indicates that it should have the 3.1 V6.

 

Not according to this:
http://service.gm.com/dealerworld/vincards/pdf/vincard91.pdf

The 8th digit is an "R", which indicates the 2.5l L4.

You realize of course that a 3" stroke means they meet at 1.5" down the bore.
Adding to that a little deck clearance by a few thou, and that picture looks about right to me.