Brake fluid in manual transmission

Transmission fluid is a hydraulic fluid. Brake fluid is a hydraulic fluid. That is the only thing they have in common, except the many types available of each. Brake fluids can be glycol based, silicon based, and even oil based. It may actually swell the seal and slow your leak. Old timers used to use brake fluid to swell seals in p/s systems and automatic transmissions 40 or so years ago. Don't have the transmission flushed. Just drain and refill w/ the correct fluid as soon as possible. Brake fluid is much thinner (less viscous) than 75W90 at virtually any temperature.  · Best Manual Transmission Fluid. 1. Red Line MT 75W GL-4 2. Genuine Ford Fluid XTWQGT SAE 75W 3. Lucas Oil LUC Clear Gear Oil 4. Mobil 1 75W Synthetic Gear Lube 5. Valvoline High Performance SAE 75W Conventional Gear Oil 6. Red Line 75W90 Synthetic Gear Oil 7. Royal Purple ROY Max Gear Estimated Reading Time: 7 mins.

Best Manual Transmission Fluid. 1. Red Line MT 75W GL-4 2. Genuine Ford Fluid XTWQGT SAE 75W 3. Lucas Oil LUC Clear Gear Oil 4. Mobil 1 75W Synthetic Gear Lube 5. Valvoline High Performance SAE 75W Conventional Gear Oil 6. Red Line 75W90 Synthetic Gear Oil 7. Royal Purple ROY Max Gear 75W90 Synthetic Lube 8. I wouldn't do it for a free replacement transmission if mine died but there's actually likely a bit of truth in this old wives' tale. The glycols in DOT-3 brake fluid will soften and swell some rubber and plastic materials to an amazing degree. A small dose might soften up dried/crispy piston seals just enough to let them work better- for a while. It may actually swell the seal and slow your leak. Old timers used to use brake fluid to swell seals in p/s systems and automatic transmissions 40 or so years ago. Don't have the transmission flushed. Just drain and refill w/ the correct fluid as soon as possible. Brake fluid is much thinner (less viscous) than 75W90 at virtually any temperature.

It slapped a cap on the bed of its compact pickup, added upholstery, some seating and voila, the Vehicles was born. The original Vehicles were basic and more tuned to handle off-road adventures than hauling the family to and from soccer gam. Looking for transmission fluids? Our team of experts narrowed down the best transmission fluids on the market. Read this review and save yourself time and money. Reviews With decades of combined experience covering the latest news, reviewin. Learn the basics of a manual transmission and explore transmission parts and the inner workings of transmissions. Advertisement By: Marshall Brain Cherise Threewitt | Updated: If you drive a stick-shift car, then you may have.