Final answer:
The manufacturer's recommended oil type for a guest's vehicle can be found in the owner's manual, the manufacturer's website, or at service centers.
Step-by-step explanation:
You can find the manufacturer's recommended oil type in three places:
- Owner's Manual: The owner's manual of the vehicle usually contains information about the recommended oil type and viscosity. It is important to follow the manufacturer's recommendations to ensure proper engine performance.
- Manufacturer's Website: Many vehicle manufacturers have websites where you can find detailed information about the recommended oil type for specific models. You can often search for your vehicle's make, model, and year to find this information.
- Service Centers: Authorized service centers or dealerships can provide you with the manufacturer's recommended oil type for your vehicle. They have access to technical information and can guide you in choosing the right oil.