Can you mix Dexos with regular oil?

Asked By: Sophie De Plata | Last Updated: 12th March, 2020
Category: automotive road side assistance
4.4/5 (3,128 Views . 26 Votes)
The simple answer: Yes. There is no danger mixing synthetic and conventional motor oil; however, conventional oil will detract from the superior performance of synthetic oil and reduce its benefits. So, yes, you can safely mix synthetic and conventional oil.

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Also to know is, can you mix oil types?

Mixing Motor Oil According to Mobil Oil, it should be fine to mix oils. Many oils are a blend of natural and synthetic oils. So, if you are low on oil, don't be afraid to add a quart or two of synthetic oil if you are using regular oil or even regular oil if you are using a synthetic.

Furthermore, what happens if I put regular oil instead of synthetic? As regular oil moves through the vehicle's engine, it degrades slowly thus leaving harmful deposits and even leading to the formation of sludge. It can affect the performance of your car's engine and the life of the vehicle. The synthetic oil comes with minimal impurities and is more sludge-resistant.

One may also ask, which oils are Dexos approved?

Dexos Oil

  • AmazonBasics Full Synthetic Motor Oil, SN Plus, dexos1-Gen2, 5W-30, 5 Quart.
  • Castrol 03084 EDGE 5W-30 Advanced Full Synthetic Motor Oil, 5 Quart.
  • Castrol 03559 EDGE 5W-30 C3 Advanced Full Synthetic Motor Oil, 5 quart.
  • Valvoline 881164 Engine Oil, 5.
  • Mobil 1 94001 5W-30 Synthetic Motor Oil - 1 Quart (Pack of 6)

What happens if you put the wrong oil in a car?

The brand of motor oil matters little, but its viscosity grade (10W-30, for example) is important. Using the wrong oil can lead to reduced lubrication and shorter engine life. If the manual says to use synthetic oil, do so.

28 Related Question Answers Found

Can you mix 5w30 and 5w20 oil?

No harm; if that's all you can get, go for it. From the factory, Lexus calls for 5W30 for all years of IS350 and 2006-2010 IS250, 0W20 for 2011-13 IS250. I would not recommend mixing weights. While there is a minimal viscosity difference between 5W20 and 5W30, there is a difference.

Can you mix 5w30 and 10w40 engine oil?

As posted above, mixing 5w30 with 10w40 will give you an oil that performs somewhat better in the cold than 10w40, but less good cold than 5w30, and that has a viscosity a bit higher than 5w30 but a bit lower than 10w40.

Does changing oil brands matter?

No. Switching brands is not harmful to your engine as long as you choose an oil marked with the API donut of the same level, e.g., API SN. You may give up enhanced performance if you switch from synthetic or high mileage to conventional oil. MYTH: When motor oil becomes dark, that means it's time to change it.

Can high mileage oil damage an engine?

High-mileage motor oil doesn't hurt and it could prevent leaks from starting. In addition to having seal conditioners, high-mileage oils usually boast more detergents designed to clean out sludge inside the engine, plus other additives meant to reduce wear on moving parts.

What causes oil to gel?

Sludge is a thickening and breakdown of the oil as it deteriorates, as moisture and contaminants build up. This causes the oil to gel, resulting in excess wear as friction increases or, in extreme cases, a stop-right-now failure.

What is high mileage motor oil?

High mileage oils contain seal conditioners and additives that cause o-rings, gaskets and seals to swell. Many high mileage motor oils include detergents and claim they are are designed to remove sludge from engines. Most high mileage oils are formulated to benefit vehicles with 75,000 miles or more.

Can I top off oil with different brand?

Ideally, same brand should be used for top off. But all oils are compatible with others, there is no negative in topping off with another brand.

Do I really need to use Dexos oil?

Here's the short answer to the dexos dilemma: If you own a 2011 or newer GM vehicle, you must use a motor oil that meets GM's dexos specifications to maintain that vehicle's warranty. There are some exceptions. The dexos specification applies to most, but not all, GM vehicles model year 2011 or later.

What is the difference between Dexos 1 and Dexos 2 oil?

To start the debate, the most convenient difference between these two classifications is their aimed models. Dexos 1 works for gasoline engine and Dexos 2 is for diesel engine and in some cases for gasoline engines as well. Thus recently this oil is being used only for diesel engines.

What makes Dexos oil different?

Dexos® oils are formulated exclusively with synthetics or synthetic blends. Better antioxidant technology that keeps oil from oxidizing. Dexos® oils generally have a drain interval of up to 15,000 miles. Lower viscosity that holds up to engine combustion and heat better and longer than other oils on the market.

Is high mileage oil Dexos approved?

It is recommended to use Mobil 1® engine oils that meet the requirements of the dexos specification." There's the answer to the question Mobil 1 High Mileage is not dexos 1™ certified and can void your warranty if used.

What is GM Dexos motor oil?

Dexos engine oil specification is designed by GM Powertrain engineers and is intended specifically for GM engines. Dexos is designed to increase fuel efficiency, extend the life of the vehicles emissions system, reduce oil changes and extend the life of the vehicle.

How often should Dexos oil be changed?

Dexos and GF-5 oils allow drivers to drive more miles between oil changes without needing to worry about a loss of lubrication qualities, the buildup of sludge, or damage to sensitive emission control devices. Depending on driving habits, oil changes could extend beyond 10,000 miles.

Is Mobil One Dexos approved?

General Motors recommends dexos1-approved motor oils for all 2011 or newer vehicles. The dexos® specification and trademark are exclusive to General Motors, LLC. We stand behind our products. Read our Mobil 1 limited warranty.

Is all Dexos oil synthetic?

The dexos specification is exclusive to General Motors, and any oil carrying the dexos logo is suitable for meeting GM warranty requirements. To meet the dexos requirements, an oil must typically be synthetic or a synthetic blend.

What is the best Dexos oil?

Best 5W30 Oil
  • #1. 5W30 Mobil 1, Advanced Full Synthetic, API SN, GM Dexos 1 Approved – 117,799 PSI.
  • #2. 5W30 Pennzoil Ultra, API SM – 115,612 PSI.
  • #3. 5W30 Quaker State Ultimate Durability, API SN, GM Dexos 1 Approved, Synthetic – 113,377 PSI.
  • #4. 5W30 Motul 300V Ester Core 4T Racing Oil, Synthetic – 112,464 PSI.
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Does my car really need synthetic oil?

Typically, high-performance vehicles will be more likely to require synthetic oil, as will vehicles that have a turbocharged or supercharged engine. However, if the automaker for your vehicle does not require synthetic oil for your engine, the oil choice is trickier — and there is no clear answer.