differential

Based on my limited research, the difference between GL-4 and GL-5 is the amount of extreme pressure additives. A lot of people say don't use GL-5 spec fluid in a transmission that calls for GL-4. One of the reasons given is that increased additives can cause corrosion to the brass...

Hello all, I have been going through my truck changing all fluids. The plan was to change the front diff to Amsoil Severe Gear 75w90 (same as rear diff), but I ordered one too few quarts so I bought a quart of Valvoline to make up the difference. From my search on BITOG, it looks like this mix...

Hi all, I have a 2019 Kia Stinger GT RWD that has been in the shop 3 times all with rear differential failure. The original diff failed in June 2023. It has currently been in the shop since December. Kia did a thorough inspection of my car to make sure I was not abusing it. Now they have a...