Common questions 

What is a DOHC 16v engine?

Joe Ford

What is a DOHC 16v engine?

Dual overhead cam engines are found in most modern vehicles today. They allow better airflow with less obstruction and are generally much more efficient engines than OHV or SOHC engines. Two camshafts operate 4 valves per cylinder, one separate camshaft for intake and exhaust valves.

What does 16v mean in a car?

16 valves

What is SOHC vs DOHC?

A SOHC is simply a single camshaft regulating both the inlet and the outlet of gases and DOHC is double camshaft that has a dedicated setup for inlet and outlet of gases. This further implies that a DOHC has double inlet and exhaust valves as compared to SOHC.১ মার্চ, ২০২১

Which is more fuel efficient SOHC or DOHC?

SOHC engines are fuel-efficient, but DOHC can reflect more fuel efficiency depending on the design of the engine and the skills of the driver. The Dual Overhead Camshaft also has a better valve timing compared to its counterpart.

What is the advantage of DOHC vs SOHC?

Advantages of DOHC over SOHC The DOHC will have double the number of valves than the SOHC and allows them to be placed in a better position for maximum performance. In DOHC, there will be at least four valves or more depending on the make and model.২৫ এপ্রিল, ২০২০

How does a DOHC engine work?

Generally, engines with dual overhead camshafts (DOHC) are higher performance engines, they produce more power, and can run at higher speeds. The camshaft uses rotating lobes, called cams, that push against the valves to open them. Springs on the valves return them to their closed position.

What is VVT engine?

In internal combustion engines, variable valve timing (VVT) is the process of altering the timing of a valve lift event, and is often used to improve performance, fuel economy or emissions. Two-stroke engines use a power valve system to get similar results to VVT.

What is dual VVTI engine?

Their latest application is Dual VVT-i (Variable Valve Timing with intelligent) technology. The technology is a smarter ways that could make engine more efficient and more eco-friendly. The sistem is located on the cylinder head which is used as automatic time controller of the engine’s inlet and exhaust valves.২২ এপ্রিল, ২০১৫

What is the best oil for VVTI engines?

Corolla 1.6 VVTi (P) (2002-) Premium oil Helix Ultra 5W-30 It is for those who want the maximum care of the engine of your car. It is recommended for Corolla 1.6 VVTi (P) (2002-) It is the best thing that you can indulge in your car TOYOTA.

Which oil is thicker 5w40 or 5w30?

Viscosity The working viscosity of 5w30 is basically from 9.3 to 12.5mm2/s whereas the operating viscosity of 5w40 is 12.5 to 16.3mm2/s. That means 5w40 has larger viscosity than 5w30. So, 5w30 is better than 5w40.১ ফেব, ২০২১

Which engine oil is best?

1-16 of over 4,000 results for “Best Engine Oil”

  • LUBZOL Active 4T 20W-40 Petrol Engine oil for Bikes (900ML)
  • Shell Helix HX7 10W-40 API SN Semi Synthetic Engine Oil for Petrol, Diesel & CNG Cars (3 L)
  • Mobil Super Moto 10W-40 API SL 4T Synthetic Technology Motorcycle Engine Oil (1L)

Can you mix 5w30 and 5W40 oil?

You can use 1 litre of 5W30 mixed with 5W40 and it will not cause any sort of ill effects to the engine. In the long run, though, stick to using one type of oil to get the best performance out of your engine.১১ জুলাই, ২০১৪

Can you mix different brands of 5w30 oil?

Yes, you will be fine so along as the viscosity grade of the two oils are the same (e.g. 5W-30 and 5W-30). Never mix 5W-30 and say 10-40.

Can I mix brands of motor oil?

Yes, you can safely mix one brand of oil (e.g. Mobil 1) with a different brand (e.g. AMSOIL) or conventional oil with synthetic oil (in fact, that’s what a synthetic blend is). Most synthetics today are fully compatible with conventional oils and can safely be mixed.

Do engine oils expire?

Under optimal conditions (stored in the original, unopened containers at moderate temperatures), motor oil usually remains stable for an extended period of time. That said, an engine oil’s properties are best if it is used within two years. After that, we recommend replacing the oil.