November 19, 2023

Are motor oil and engine oil the same?

Yes, the terms “motor oil” and “engine oil” are often used interchangeably to refer to the same thing. Both terms refer to the lubricating oil that is used in internal combustion engines, such as those found in cars, trucks, motorcycles, and other vehicles. This oil is essential for lubricating the moving parts of the engine and helping to dissipate heat.

Motor/engine oil comes in various formulations and viscosities to meet the specific needs of different types of engines and operating conditions. It’s important to use the correct type and viscosity of oil recommended by the manufacturer for your particular vehicle to ensure proper engine performance and longevity. Regular oil changes are also important to maintain the health of the engine.

What happens if you put motor oil instead of synthetic?

Using conventional motor oil instead of synthetic oil in a modern vehicle should not cause immediate catastrophic damage to the engine. However, there are some important factors to consider:

  1. Performance: Synthetic oils are engineered to provide better performance and protection under extreme conditions, such as high temperatures and heavy loads. If you use conventional oil in situations where synthetic oil is recommended, you may experience reduced engine performance and efficiency.
  2. Longevity: Synthetic oils typically offer better long-term protection and are less prone to breaking down or forming deposits compared to conventional oils. Using conventional oil in the long term may result in increased wear and potentially shorter engine life.
  3. Oil Change Intervals: Synthetic oils often have longer recommended oil change intervals compared to conventional oils. If you use conventional oil but still follow the longer change intervals recommended for synthetic oil, it could lead to increased engine wear due to inadequate lubrication over time.
  4. Fuel Efficiency: Synthetic oils can contribute to improved fuel efficiency due to reduced friction and better flow properties. Using conventional oil may lead to slightly lower fuel economy.
  5. Extreme Conditions: In extremely cold or hot climates or in high-performance engines, synthetic oils are often preferred because of their superior performance characteristics. Using conventional oil in these conditions may result in suboptimal engine protection.

It’s essential to consult your vehicle’s owner’s manual to determine the recommended oil type and viscosity for your specific make and model. Manufacturers provide these recommendations based on extensive testing and engineering to ensure the best performance and longevity for your engine. While using conventional oil in a pinch is generally acceptable, it’s advisable to switch back to the recommended synthetic oil at your next oil change to maintain optimal engine health.

Is it bad to put thicker oil in your car?

Putting thicker oil in your car than the manufacturer recommends can have both positive and negative effects, depending on the circumstances. Here are some considerations:

Positive Effects:

  1. Improved High-Temperature Stability: Thicker oil can provide better high-temperature stability and protection in certain situations, such as when operating in extremely hot climates or when towing heavy loads.

Negative Effects:

  1. Reduced Fuel Efficiency: Thicker oil typically has higher viscosity, which can lead to increased friction in the engine. This extra friction can reduce fuel efficiency and result in lower miles per gallon (MPG).
  2. Slower Lubrication at Cold Start: Thicker oil can flow more slowly when the engine is cold, which can delay lubrication to critical engine components during startup. This can potentially lead to increased wear on engine parts, particularly during cold weather.
  3. Increased Load on the Oil Pump: Thicker oil can put additional stress on the engine’s oil pump, which may have to work harder to circulate the oil. Over time, this could lead to premature wear of the oil pump.
  4. Reduced Engine Performance: Thicker oil can impede the flow of oil in the engine, potentially reducing engine performance and responsiveness.

It’s essential to use the oil viscosity recommended by the vehicle manufacturer, which can typically be found in your owner’s manual or on the oil filler cap. The manufacturer selects the recommended oil viscosity based on extensive testing and engineering to ensure the best balance of protection and performance for your specific engine.

If you have concerns about using a thicker oil, it’s a good idea to consult with a mechanic or automotive expert who can provide guidance based on your specific driving conditions and vehicle requirements. Using the correct oil viscosity is essential for maintaining your engine’s health and performance.