Main Title |
Octane Requirements of 1975 Model Year Automobiles Fueled with Unleaded Gasoline. |
CORP Author |
Environmental Protection Agency, Ann Arbor, MI. Technology Assessment and Evaluation Branch. |
Year Published |
1975 |
Report Number |
EPA-AA-TAEB-75-28; |
Stock Number |
PB80-225881 |
Additional Subjects |
Automobiles ;
Automotive fuels ;
Knock ;
Octane number ;
Fuel consumption ;
Performance evaluation ;
Unleaded gasoline ;
Motor vehicles(1975 models)
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
NTIS |
PB80-225881 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
29p |
Abstract |
Some concern has been voiced that a large portion of 1975 model year automobiles will have engine knock problems when operating with unleaded gasoline of 91 RON/83 MON. Unleaded fuel of 91 RON/83 MON is the only unleaded gasoline that will be available at most of the retail pump outlets. This will occur because most of the gasoline companies will limit their production to satisfying only the minimum requirements of the current EPA regulations. These regulations require availability of unleaded gasoline of 'not less than 91 Research Octane Number'. The concerned groups indicate that the percentage of cars satisfied with this unleaded gasoline will be much lower than the percentage of past years. These concerned groups point out that too many cars will have to resort to spark retard for elimination of knock, and that this will result in a substantial loss in fuel economy. The purpose of this report is to document and discuss, concisely, that information which is relevant to this potential problem concerning engine knock. |
NTIS Title Notes |
Technical rept. |
PUB Date Free Form |
Aug 75 |
Category Codes |
13F; 21D; 85H; 97K |
NTIS Prices |
PC A03/MF A01 |
Primary Description |
200/05 |
Document Type |
NT |
Cataloging Source |
NTIS/MT |
Control Number |
323785338 |
Origin |
NTIS |
Type |
CAT |