Can I use 15w40 instead of 5w40?

5w-40 has a broader operating range than 15w-40. Unless you're penny pinching or you're misinformed about synthetic oils, it's stupid to pick the 15w-40 option. There is a single benefit to 15w-40 oils though, they will maintain their 40 weight operating viscosity longer than an oil that starts at 5w.

What happens if you mix 5w40 with 15w40?

Mixing a dino with a syn, a syn with a dino, a 5W-40 with a 15W-40, and so on is fine. You aren't going to get an additive clash, the different base stock of x brand of oil won't sponteously combust with the other x brand of oil that you are blending it with and make your engine throw a rod.

Which is better 5W-40 or 15W 40?

(5w) is for oil viscosity or thickness at lower temperature and 2nd (40) for higher temperatures. So 5w40 will have better performance at lower temperature. It will have a good cold starting advantage compared to 15w40. 5w40 is generally used in petrol and diesel engine while 15w40 is majorly found in diesel engines.

What is the difference between 5W and 15W oil?

A 5W viscosity grade requires the lubricant to flow properly at lower temperatures than, for example, a 15W viscosity grade, so it is expected to be used at lower starting temperatures.

Is 15W oil thicker than 5W?

In general, in a given engine at operating temperature a 5W-40 and a 15W-40 have the same viscosity; one will not be “thinner” or have a lower viscosity than the other.

5w-40 vs 15w-40

What is 15W-40 oil used for?

Mobil Gas Engine Oil 15W-40 is a premium fleet engine oil specifically formulated to provide reliable protection for trucks and buses using Compressed Natural Gas (CNG) or Liquefied Natural Gas (LNG). Mobil Gas Engine Oil 15W-40 is formulated from high quality base stocks and a balanced additive system.

Is it OK to change from 5w30 to 15W40?

Probably not. 15w40 is usually used in diesel engines and has a much different additives profile. 5w30 is usually used in gasoline engines. Diesel oil is designed with high antiwear additives such a ZDDP.

Is 15W40 good for diesel engines?

ADVANTAGE 15W-40 HEAVY DUTY DIESEL ENGINE OIL can be used with complete success in over-the-road diesel trucks, off-highway diesel equipment, farm tractors, and passenger cars and light trucks with diesel, turbo-charged diesel engines, or gasoline engines and is backward compatible with previous API Oil Categories.

How cold is 15W40 good for?

“Its starting temperature range is down to minus 22 F (compared with 15-plus with 15W40) up to 122 degrees F (same as 15W40). That tells you a couple things: There's a 37-degree cold cranking advantage (from minus 22 to plus 15) to a 5W40 and the same benefit on the high end.”

What does the 15W-40 stand for?

"15W" refers to the flowability at cold temperatures (W=winter). It is still pumpable down to -25 °C, i.e. liquid enough to disperse in the engine. The number "40" describes the flowability of the engine oil at an operating temperature of 100 °C.

Is 5w40 good for summer?

5w30 oil is designed to operate at temperatures as low as -25°C, but is also a great choice for warmer climates that reach up to 25°C.

Is 5w40 good for diesel engines?

One engine oil for mixed fleet operations

Mobil 1 Turbo Diesel Truck 5W-40 engine oil is recommended for use in all super-high-performance diesel applications, including modern low-emission engine designs with Exhaust Gas Recirculation (EGR).

Can you mix different viscosity oils?

yes you can mix same brand and type oils with different viscosity and it will be fine as long as you don't mix them 50/50. If you mix 200 ml of oil with the rest of oil needed for your engine you will be totally fine.

Is all 15w40 oil the same?

No. Oils carry a certification and must be selected to meet or exceed the recommendations in your engine manual. Oil standards are normally backwards compatible, but the base oils are different.

Can I use 5W40 in my Duramax?

Our answer: Yes, you can certainly use 5W-40 in winter (and summer) in your Duramax. While 15W-40 is suggested as the predominant viscosity for your engine, GM does recommend 5W-40 for temps below -18°C (0°F).

Can I use 15W40 in petrol engine?

Vehicle & Fuel Types

Semi Synthetic 15W-40 is suitable for use in passenger cars, 4WDs & light commercial vehicles and is compatible with Petrol/LPG (Dual Fuel), E10, Diesel (without DPF) and most other conventional fuels.

Which oil viscosity is best?

For very cold weather, a viscosity rating of 5W-30 provides maximum protection. When driving in temperatures running from 0 to 60 degrees Fahrenheit, a rating of 10W-30 offers excellent all around protection. For driving in extremely hot conditions, 20W-50 oil offers the best protection.

Which engine oil is best for high temperatures?

Mobil 1 advanced synthetic motor oil provides outstanding high-temperature performance and is proven to protect at engine temperatures up to 500 degrees Fahrenheit.

What is the best oil to use in a diesel engine?

If you're looking for the best oil for your diesel engine, you can't go wrong with synthetic oil. Synthetic oil is designed to withstand extreme temperatures and conditions, making it ideal for use in diesel engines. It also provides superior protection against wear and tear, helping to extend the life of your engine.

What cars use 15W40 oil?

ADVANTAGE 15W-40 HEAVY DUTY DIESEL ENGINE OIL is designed to meet the performance requirements of diesel engine manufacturers such as Caterpillar, Cummins, Detroit Diesel, Ford, Mack, Navistar, and Volvo.

Why do diesels use thicker oil?

Higher the viscosity thicker the oil. It is believed that thick oils are better at maintaining film strength and oil pressure at high temperatures and loads. This oil is majorly made for the rare cars which are with diesel engines that burns oil excessively. It is a premium high performance mineral.

When should I change my oil 15W40?

2) Use 15W40 grade @ Rs 300 per litre (mineral) and change every 5K kms.

Is 15W40 synthetic oil?

Mobil Delvac™ Extreme 15W-40 is a synthetic, high-performance diesel engine oil that helps extend engine life while providing long drain capability for modern diesel engines operating in extreme conditions.

What is 15W 30 oil used for?

Delo® 400 SD SAE 15W-30 is a premium and innovative diesel engine oil intended for engines that have duty cycles which qualify as "severe duty." These include reducing idling time by turning the engine off at stops or deliveries, stop and go in heavy traffic or city delivery, or situations where engine cooling may be ...