http://www.motor.com/article.asp?article_ID=1863
http://www.motor.com/magazine/pdfs/012012_03.pdf
good read about consequences of E15 being pushed to market by gov't.
Quote:
The 9.9-hp carbureted four-stoke test engine exhibited changing hydrocarbon (HC) emissions due to a condition where the engine misfires because the air/fuel ratio is not rich enough to support combustion. Higher running temperatures are believed to have damaged pistons. The month long exposure to E15 is credited with deterioration of several elastomeric hoses and gaskets. On the 300-hp engine, three exhaust valves failed and the pistons accumulated higher engine deposits. HC and NOx emissions were also higher. The 200-hp EFI two stroke engine suffered a failed rod bearing at 256 hours of a 300-hour test. On the 4.3L V6 EFI four-stoke stern-drive equipped with a catalyst system, the tests showed higher catalyst and exhaust valve temperatures.
Quote:
At the conclusion of the tests, it was determined that further testing was needed
yeah, further testing needed so they can fudge results and get E15 into market.
http://www.motor.com/magazine/pdfs/012012_03.pdf
good read about consequences of E15 being pushed to market by gov't.
Quote:
The 9.9-hp carbureted four-stoke test engine exhibited changing hydrocarbon (HC) emissions due to a condition where the engine misfires because the air/fuel ratio is not rich enough to support combustion. Higher running temperatures are believed to have damaged pistons. The month long exposure to E15 is credited with deterioration of several elastomeric hoses and gaskets. On the 300-hp engine, three exhaust valves failed and the pistons accumulated higher engine deposits. HC and NOx emissions were also higher. The 200-hp EFI two stroke engine suffered a failed rod bearing at 256 hours of a 300-hour test. On the 4.3L V6 EFI four-stoke stern-drive equipped with a catalyst system, the tests showed higher catalyst and exhaust valve temperatures.
Quote:
At the conclusion of the tests, it was determined that further testing was needed
yeah, further testing needed so they can fudge results and get E15 into market.