Does it matter if I use 10W40 instead of 5w30?
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Does it matter if I use 10W40 instead of 5w30?
The first number in the motor oil’s name describes the oil’s cold viscosity. A 10w-40 motor oil is a thicker oil at startup than a 5w-30 motor oil. Therefore, 10w-40 oil clings to the engine’s moving parts more than the lower viscosity 5w-30 oil.
What oil does a Lexus gs300 take?
Engine Oil
| Viscosity: | 5W-30 (All TEMPS) SAE 5W-30 is preferred. |
|---|---|
| Capacity: | 6.8 quarts (with filter). AWDAfter refill check oil level. 6.7 quarts (with filter). RWDAfter refill check oil level. |
| Torque: | 33 ft/lbs (Oil Drain Plug) |
Can you put 10W40 in a 10W30 engine?
The basic fact that “40” is greater than “30” tells you that. If you were to put 10W40 in an engine designed for 10W30, the “thicker” oil would lead to friction in the engine and an increased load on the oil pump.
What happens if you mix 10W30 with 10W40?
You will be fine with that. They will mix right in with each other and no harm will be done. Even if you were to mix syn with conventional you’ll be fine. If you were to labratory test your oil it will read out as not a true 10w-30 but no harm will be done.
Can I use 10W40 in my car?
The recommended oil viscosity for your vehicle, according to Kia documentation, is 10W-40. If you drive the vehicle in exceptionally cold weather, well below 32 degrees, you can use 5W-30 oil but even 10W-40 is still perfectly OK to use if outdoor temperatures are below freezing.
Is 10W40 good for high mileage?
If both 10w30 and 10w40 are acceptable oil options for your car, it’s recommended that you use 10w40 for your car with high mileage. The thicker oil helps older engines handle higher temperatures and manage wear and tear more efficiently. The thicker oil will reduce wear and tear and extend the life of your engine.
What kind of oil is SAE 5W-30?
What is 5w30 oil? 5w30 is a motor oil that is widely used in light-duty petrol and diesel engines. Like most motor oils produced today, 5w30 is a multi-grade oil, meaning it ranges from a lower viscosity grade of 5 to a higher viscosity grade of 30.
How much oil does a Lexus gs350 take?
Capacity: 6.8 quarts (with filter). AWDAfter refill check oil level.
What is 10W-40 oil used for?
The synthetic 10W-40 flows easily and still maintains enough viscosity to protect piston skirts and bearings when it gets hot. The improved temperature stability of synthetics makes them a better choice for race engines and serious high-performance engines.
Is 10W40 better than 10W30?
10W40 oil has a higher viscosity, retaining more thickness than 10W30 as the temperature rises. In that case, 10W-40 motor oil would technically provide better protection against engine wear contact in higher temperatures.
What is 10W 40 used for?
The 10W-40 engine oil has a thicker viscosity than, say, 10W-30 oil when the car engine is hot. This helps it lubricate older moving parts in high mileage engines while being less likely to leak.
Is 10W40 good for summer?
Similarly, SAE 10W-40 motor oil performs well in cold weather conditions. It has the same low-temperature limits as the 10W-30 but is better in higher temperatures. Either 10W30 or 10W40 for summer use is fine; however, 10W-40 motor oil will better protect your engine.