Slipping Transmission. One of the most common indicators of low transmission fluid is slipping during gear shifts. If your 500’s transmission changes gears with a noticeable delay or without a smooth transition, this could signal low fluid levels. You may also experience sudden shifting, RPM spikes, and grinding noises while driving. manual. Number of gears: 5. According to our sources, oil, coolant and fuel capacity for this version of 2013 Fiat 500 Abarth are as follows: Engine lubricant oil capacity: 3.8 liter / 4 U.S. qt / 3.3 imp. qt. with dry filter. Engine coolant capacity: 4.4 liter / 4.7 U.S. qt / 3.9 imp. qt. Apr 30, 2004. Messages. 1,737. Location. Indiana. May 30, 2020. #2. 75W80 GL-4 Gear Oil per the Fiat forums. The OE spec is Mopar C635 DDCT/MTX which they sell for 13 bucks a quart. Fabio13. 1377 posts · Joined 2014. #2 · Jul 3, 2020. If it's an automatic it probably doesn't have one. They are usually lifetime fill. That would be a specialty tool that costs about $15 if you still want to check. 2013 Fiat 500 Sport AT, Xpel Ultimate Clear Bra, 3M Crystalline Window Tint, Black top stripes, Black "500" (wide) side stripes Join Burgo from the Nulon Motorsport garage as he takes you through the easy steps on changing your gearbox oil. With this info you have no reason not to att The Fiat 500L is given more torque because the c635 transmission has a higher torque capacity than the c510 transmission in the Fiat 500 Abarth. December 4, 2012 at 12:20 PM Hi Chris, The GL-4 oil you purchased should be fine. GL-4 is a formulation that is friendly to synchronizers that do not like GL-5 (most commonly used gear oil). This is the oil that Nissan recommends in my Infiniti G20 (Nissan Primera) for the same reasons Fiat made their recommendation for the 126 synchronized transmissions. 99 Sportsman 500 Fluids Question. I've been searching for hours on here this morning and called my local dealer and can't come to any sort of conclusion of what is right or wrong. I know the engine oil can be 0W-40, 2W-50, 5W-50 or 10W-50 full synthetic. I know the coolant can be any high quality 50-50 or 60-40 coolant. 10Ws.