Final answer:
Four types of lubricants for manual transmissions/transaxles include motor oil, synthetic gear oil, automatic transmission fluid, and mineral-based gear oil. The correct type depends on the vehicle specifications, and the manufacturer's recommendation should always be followed.
Step-by-step explanation:
The lubricants a manual transmission/transaxle may require vary based on the specific year, make, and model of the vehicle. However, four common types of lubricants that might be used include:
Motor oil: Some transmissions use regular motor oil, or engine oil, as lubrication.
Synthetic gear oil: Offers better protection and efficiency at extreme temperatures and is often specified for performance vehicles.
Automatic transmission fluid (ATF): Despite the name, some manual transmissions may require ATF for better lubrication characteristics.
Mineral-based gear oil: A traditional lubricant, used especially in older models, which provides adequate lubrication under normal driving conditions.
It's important to consult the vehicle's owner's manual or a professional mechanic for the correct type of lubricant as using the wrong one can lead to transmission damage.