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RPO's

Rob

Site Administrator
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13,763
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1990 Corvette ZR-1
Are you sure it's NN6 and not MN6 which is the RPO for the ZF 6 speed transmission?
 

Ken

Gone but not forgotten
Joined
Jan 30, 2001
Messages
8,236
Location
Hermosa Beach, CA
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1987 Z51 Silver Coupe
NN5 is CA Emisions Requirements. ;)

Regular Production Option Codes (R.P.O.) for General Motors Vehicles
Published: October 1998


  • NN6 : EMISSION OVERRIDE, DIESEL FUEL, EXPORT

there are a lot more...

I don't think they made a diesel Vette though. :L

_ken :w
 
T

TomsToy

Guest
RPO NN6

LOL, Well, I went an looked on the RPO list on the car, and it must have been a mistake/misprint OR I have the ONLY diesel vette!! Wind it up Baby! LOL. Thanks guys, for the research, that one had me going.
Tom
 

Hib Halverson

Technical Writer for Internet & Print Media
Joined
Jan 10, 2001
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13,453
Location
CenCoast CA
Corvette
71 04 12 19
NN 6 *probably* means an emissions override for either a diesel engine *or* a car that's being exported.

It's certainly not for a diesel Corvette.

With gasoline engines NN6 probably meant leaded fuel compatibility along with some different calibration for use in countries that don't have emissions laws.
 
T

TomsToy

Guest
RPO

Thanks for the insite Hib, that's great info for the records.
Tom;) :D :beer
 

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