How do I change my gearbox oil
Hi Scotty! I have a 2008 Mustang GT 4.6 V8 3V 5 speed standard with 70,000 original miles. I want to flush the old transmission fluid. Owners manual says to use ATF fluid. I have a few bottles of Royal Purple synromax manual transmission fluid, would that be safe to use? One other question... What quality spark plugs do you recommend? I have used regular Ford Motorcraft plugs last change at 40,000 miles. Thanks for posting all your videos. Great learning and entertainment!
What do you mean by 5 speed standard? Is this a manual or automatic transmission? What lubricant does your owner's manual specify for your vehicle's transmission?
I want to flush the old transmission fluid.
I have a few bottles of Royal Purple synromax manual transmission fluid, would that be safe to use?
For spark plugs, check the owner's manual for specs. Iridium spark plugs usually last a long time. Denso and NGK are good brands.
Some manual transmissions due in fact use ATF. My 5th gen (2011 &2015) Camaro SS with 6spd manual called for ATF. I used the best Amsoil ATF when I changed the fluid out. I've had bad luck with Royal Purple products, so I don't ever recommend using their fluids. Your owner's manual should call out what plugs and transmission fluid to use.
My bad... 5 speed standard shift manual trans. Owners manual says Mercon ATF. I never heard of using ATF in a manual tansmission.
Everything I could find says, beginning with the 2008 model, 3.2 quarts Mercon V.