| type="text/javascript"> | | | | ratio of 9.8:1, producing 310 horsepower and 365 lb-ft |
| The Lincoln Navigator L, the extended-length version | | | | of torque. |
| of Lincoln's big luxury SUV, returns for 2010 with no | | | | In the Navigator, this engine has flex-fuel capability, |
| changes to its standard V8 engine. | | | | allowing it to burn either regular gasoline or blends of |
| The Navigator L's sole engine is Ford's 5.4-liter Triton | | | | up to 85% ethanol. Even on regular gasoline, the |
| V8. This iron-block, aluminum-head, SOHC engine, also | | | | 5.4-liter V8 is very thirsty. The Navigator L's weight |
| used by the Ford Expedition and F-Series pickup | | | | and class exempt it from EPA fuel economy testing, |
| trucks, is related to Ford's 4.6-liter V8, but it has a | | | | but reviewers say 12-13 mpg is typical, and hard |
| longer stroke and a forged-steel crankshaft. The | | | | driving can push mileage into the single-digit range. |
| 5.4-liter engine was introduced in 1997; it was | | | | Running on E85 (an 85/15 blend of ethanol and |
| extensively revised in 2004, gaining a lightweight | | | | gasoline) increases the 5.4-liter's already prodigious |
| plastic intake manifold, freer-breathing cylinder heads | | | | fuel consumption by more than 30%, but the EPA |
| with three valves per cylinder, and roller-type cam | | | | says it reduces greenhouse gas emissions by 10-11%. |
| followers to reduce friction. It has a compression | | | | |