Compression Ratio 10.5:1 - Should I Use 92 or 95 Octane?

1 Answers

MacArya

07/29/25 5:04pm

Compression ratio 10.5:1 requires 95 octane fuel. 95 octane gasoline is more suitable for vehicles with high compression ratios. Below are specific details about fuel standards: 1. 90 octane gasoline is suitable for gasoline vehicles with engine compression ratios below 8.5; 92 octane gasoline is suitable for gasoline vehicles with engine compression ratios between 8.6~9.9. 2. 95 octane gasoline is suitable for gasoline vehicles with engine compression ratios between 10.0~11.5; 98 octane gasoline is suitable for gasoline vehicles with engine compression ratios above 11.6. Additional information: Compression ratio refers to the degree of compression of the engine's air-fuel mixture, expressed as the ratio of the total cylinder volume before compression to the cylinder volume after compression (i.e., combustion chamber volume). Higher octane fuel has better anti-knock properties and is less prone to detonation, but burns relatively slower. Lower octane fuel burns faster but lacks sufficient anti-knock capability, making it more likely to cause detonation.

Was this review help?

SAAB, also known as Saab or translated as Shenbao, is an automobile brand under Dutch car manufacturer Spyker. On January 21, 2013, Saab's new owner, the Swedish National Electric Vehicle Company (NEVS), unveiled a new logo. Saab discontinued the original "Griffin" emblem, replacing it with a gray logo featuring only English letters and a circle. SAAB's main models include: Saab 9-5, Saab 9-3, Saab 93, Saab 9000, Saab 900, Saab 9-4X, Sonett, Saab 92, Saab 9-2X, Saab 9-X, Saab 99, Saab 96, Phoenix, Saab 9-7, and many others. Brief History: In 1937, Saab became a national military aircraft manufacturer. In 1946, after World War II, Saab decided to shift to automobile production, leveraging its aviation industry background to gain unique technological advantages in car manufacturing. In June 1947, the Saab 92.001 prototype was unveiled to the press, featuring a horizontally mounted two-stroke engine, front-wheel drive, a robust safety cabin, and an aerodynamic wing-shaped design. In 1949, the Saab 92.001 was officially named the Saab 92 and entered serial production in December of that year. In 1955, the Saab 93 saw significant design improvements, adopting a three-cylinder engine, a new transmission system, and tubeless tires. In 1956, the Saab Sonett was Saab's first sports car, with only six units produced worldwide. The model weighed 500 kg and could reach a top speed of 160 km/h. In 1958, the Saab 93 750 Gran Turismo was Saab's first mass-produced sports car. In 1959, the Saab 95 became Saab's first station wagon, offering configurations for two, five, or seven seats. A four-cylinder engine was introduced in 1957. In 1960, the Saab 96 became a market leader, with over 547,000 units sold during its 20-year production run until 1980. In 1962, after rally driver Erik Carlsson's numerous victories, the Saab Sport was officially renamed the Saab Monte Carlo 850. By this time, seat belts had become standard in Saab cars. In 1966, the Saab Sonett II (Saab 97) began using a fiberglass and plastic body, replacing the original two-stroke engine with a four-cylinder engine. In 1967, the Saab 99 marked the beginning of a series of innovative designs, including headlight washers in 1970, automatic crash buffers and heated seats in 1971, and side protection devices in 1972. In 1968, with the launch of the Saab 99, Saab began targeting the premium midsize car market. In 1969, Saab AB merged with truck manufacturer Scania-Vabis AB to form Saab-Scania AB. In 1970, the Saab Sonett underwent a redesign, adopting an Italian-style body. In 1973, the Saab 99 Combi Coupé featured foldable rear seats and a robust tailgate, making it a practical hatchback. In 1976, Saab pioneered the use of turbocharging technology in the Saab 99 Turbo, setting an industry trend. In 1977, the Saab 99 Turbo made a significant impact at the Frankfurt International Motor Show in Germany. In 1978, Saab became the first automaker to offer an in-car air filter, a welcome feature for allergy sufferers. In 1980, Saab introduced the Automatic Performance Control system, which adjusted turbo boost levels to optimize engine performance under various conditions. In 1983, the Saab 900 Turbo 165, also known as the Aero model, became the world's first car with a 16-valve turbocharged engine. In 1984, the Saab 9000 was born. In 1986, the Saab 900 Convertible marked a successful debut, accounting for 15% of Saab's sales by 1998. On February 1, 2010, General Motors officially sold Saab to Dutch automaker Spyker for $400 million, marking a change in ownership.

Compression Ratio 10.5:1 - Should I Use 92 or 95 Octane?

How to turn off the Magotan?

What Brand of Car is SAAB?

How to Break the Glass Without a Safety Hammer?

What to Do When the Car Shows Insufficient Battery Power?

How to Practice S-Turns for People Who Lack Car Sense?

How to Drive in a Lane Without Arrows?

What is the actual fuel consumption of the BMW X3?

What does it mean to check the ABS system?

What is the suitable tire pressure for Baojun 730?

How to deduct points for not wearing a seat belt?