Does a 4 stroke need oil? Yes, a 4 stroke needs oil to keep the engine lubricated and running strong. In both automobiles and outboards, the oil and gas go in separate tanks, and the oil has to be ...

Wärtsilä has announced the results of extensive testing of its 4-stroke ammonia engine, which demonstrated a reduction in greenhouse gas (GHG) emissions by up to 90% compared to traditional ...

Wärtsilä’s 4-stroke engine-based solution for ammonia fuel now delivers higher than ever levels of efficiency and performance.. Following its introduction to the commercial marine sector in ...

On a 4 stroke, the piston will travel from TDC to BDC four times to turn the crankshaft one time around during a combustion cycle. On a 2 stroke, the piston will travel two times to do the same thing.

Just for reference regarding the engine's power capabilities, the 1630 ACE 325 is capable of providing a Sea-Doo with legitimately head-spinning acceleration, going 0 to 60 mph in just 3.4 seconds.

But [Integza] wanted to see what happens inside a 4 stroke engine, and it wasn’t enough to see it from a transparent cylinder head. No, he wanted to see it in the cylinder itself.

Porsche may be signaling a shift in automotive engineering with recent patent filings for a six-stroke engine, hinting at the ...

Chinese scientists build atom-sized ‘4-stroke’ quantum engine Researchers use lasers to increase or suppress an ion’s quantum characteristics and generate power at microscopic level ...

Intake, compression, power, then exhaust. Every 4-stroke engine ever made – about 80% of all engines currently in existence – function on this principle – even rotary engines. But now ...

Porsche's 6-stroke patent seems to indicate it could eke more power out of an engine Unless you drive an early 2-stroke Saab , your car probably has a 4-stroke engine . But Porsche wants to see if ...

Wärtsilä has announced the results of extensive testing of its 4-stroke ammonia engine, which demonstrated a reduction in greenhouse gas (GHG) emissions by up to 90% compared to traditional ...

As the name implies, a 4 stroke engine’s pistons need to move up and down four times to turn the engine once. On 2 stroke engines, the pistons complete the same action in two “strokes.” ...