That's talking about power steering fluid in the brake system, not brake fluid in the power steering system.
Intercostal Strain. In the spine there is an intercostal muscle group consisting of the internal and external intercostals, and the subcostal and transverse thoracic muscles, located between the ribs in the thoracic cavity.These muscles can become strained due to rapid movements that bend or twist the upper body suddenly.n the spine there is an intercostal muscle group consisting of the internal and external intercostals, and the subcostal and transverse thoracic muscles, located between the ribs in the thoracic cavity. These muscles can become strained due to rapid movements that bend or twist the upper body suddenly.
Strains in the muscles of the upper back pain are one common cause of pain. Learn more: Upper Back Pain from Intercostal Muscle Strain . Regardless of whether the exact source of upper back pain can be determined, it helps to know the various potential causes in order to better narrow down which treatments may be best.