Hello, i have a 2008 Mazda3 2.0 with manual trans. Denver Colorado temperature which not too hot or cold. My trans. requires either 75W90 GL-4 OR GL-5. Many forums suggest using only GL-4 and not GL-4 and GL5 comparable. i just want to something that not so expensive like Redline or MT90 in the car. Kind of on budget. Has anyone ever use Carquest Grease and Lube EP 90 GL-4 Gear Oil. $25 for 4 qt. (1 gal)---SAE90. Also since it a GL-4, do you think it is acceptable for my transmission.
Thank you.
Thank you.