GM
Fuel System Treatment Plus
Cleans carbon deposits from carburetors, fuel injectors, intake valves, intake ports, and combustion chambers.
12 oz. size treats up to 12 gallons of fuel and is designed for small cars and trucks. 20 oz. size treats up to 20 gallons of fuel and is designed for larger cars, light-duty trucks, and sport utility vehicles.
I don't know if this is valid or not ..but here's something for diesels
Stanadyne Diesel Fuel Additives
OEM
APPROVAL REFERENCE
STANADYNE ADDITIVE
FORD
94-5-11;
"M" letter 98-M-10;
"Oasis" Special Service
Msg. 12370
Performance Formula
Performance Formula Jr
Performance Formula
GM 376302 Performance Formula
Navistar 011223300 Dec. 1993 Performance Formula
Deere
93-4-45-6
DTAC # K1034
Service letter 275
Performance Formula
Caterpillar
Component Code 1250
Feb. 1994
Performance Formula
VW
Service bulletin recommendation:
VW p/n ZVW 340 001
is SAC 32938
Lubricity Formula
AM General
Adventures Magazine
Fall 1997
Performance Formula
Volvo Penta Canadian Dealer letter
Performance Formula
3. Stanadyne is the ONLY independent diesel fuel additive brand that is:
• Approved by engine and vehicle original equipment manufacturers.
• The brand recommended most by Fuel Injection Service Dealers.
• Shown by independent testing (Southwest Research) to perform best in the
three most important performance criteria of:
• Cold weather protection to stop gelling and filter plugging.
• Increased lubricity to protect parts & reduce wear.
• Cetane improvement for easier starting, less smoke, & more power.