I have changed my transmission, transfer case & rear differential fluids & vehicle battery at 45K miles after 5 years of the parching the brand new vehicle. After performing above mentioned services, I have noticed my vehicle gas mileage has dropped and gears takes more effort to shift from 1st to 2nd.
I have changed transmission oil with "Valvoline Maxlife ATF" twice, (changed once then drove for 250 miles and changed again) & front & rear gear oil with "PENNZOIL PLATINUM GEAR 75W-90". Also changed vehicle air filter with OEM.
Please advise, if I have replaced above mentioned oils with good quality brands or I should switch to Amisol?
Thanks so much Scotty & team.
Try answering but those are not that well made vehicles and if changing the fluid did that it would show that the transmission has some internal wear but do try the amso keep your fingers crossed
Thanks Scotty, much appreciated.
Did you use the same fluid spec what the manufacturer recommends in your owner’s manual?