1. Engine Size Specification: Look in your vehicle's owner's manual or any other documentation to see if it specifies the engine size as either 1.6L or 1.8L.
2. Engine Bay Inspection: Open the hood of your vehicle and look for the engine size marking. This is usually a sticker or a stamping located somewhere on the engine block or in the engine bay. It should indicate the engine size.
3. VIN Decoder: Check your vehicle's Vehicle Identification Number (VIN). You can look up the VIN decoder online or in your owner's manual. The VIN can provide information about your vehicle's specifications, including the engine size.
4. Engine Code: Some vehicles may have an engine code that can help identify the engine size. This code is often found on the emissions sticker located in the engine bay or on the inside of the driver's door. You can cross-reference the engine code with a vehicle specifications guide to determine the engine size.
5. Displacement: If the above methods are not available, you can approximate the engine size by checking the engine's displacement. This can be done by removing the oil cap and looking inside the engine. The displacement is usually stamped on the engine block and will be measured in cubic centimeters (cc). A 1.6L engine is approximately 1600 cc, and a 1.8L engine is approximately 1800 cc.
It's important to consult multiple sources and be sure of your findings to ensure accurate identification of your vehicle's engine size.