If you're unsure whether your CRV is an EX or LX, there are a few ways to tell. First, check the engine size. The EX has a 2.4-liter DOHC i-VTEC 4-cylinder engine while the LX has a 2.0-liter SOHC i-VTEC 4-cylinder engine. Second, take a look at the features and amenities. The EX comes standard with heated front seats, while the LX does not. Finally, check the price tag; the EX is typically more expensive than the LX.