How to Add Manual Transmission FluidHere is how to add fluid. See RecommendedFluids and Lubricants on page 474 to determinewhich type of fluid to use.1. Remove the filler plug.2. Add fluid at the filler plug hole. Add onlyenough fluid to bring the fluid level up tothe bottom of the filler plug hole.3. If your vehicle is a CTS, replace the gasketand reinstall the filler plug. If your vehicle is aCTS-V, apply LOCTITE ® #516 or equivalentsealant to the threads and then reinstallthe filler plug.Again, with either vehicle, be sure the plug isfully seated.Hydraulic ClutchIt is not necessary to regularly check clutch fluidunless you suspect there is a leak in the system.Adding fluid will not correct a leak.A fluid loss in this system could indicate aproblem. Have the system inspected and repaired.When to Check and What to UseThe hydraulic clutch fluidreservoir cap has thissymbol on it. See EngineCompartment Overviewon page 342 forreservoir location.Refer to the Maintenance Schedule to determinehow often you should check the fluid level inyour clutch master cylinder reservoir and for theproper fluid to use. See Owner Checks andServices on page 469 and Recommended Fluidsand Lubricants on page 474.How to Check and Add FluidMake sure the fluid level is at the MIN (Minimum)line on the side of the reservoir. If it is not,remove the cap and add the proper fluid until thelevel reaches the MIN line.356
