Transmission problem
1989 Buick Century 6 cyl Front Wheel Drive Automatic 80000 miles
----------------------------------------------------------------
i have an 89 buick century wagon with 80,000 miles, i have had a lot of internal work done to this car bc it seems like a really good car to me and i dont think i have ever had to repair or replace the same thing twice. my transmission was replaced about 3 months ago or so and i just had the rear left I beam replaced and it seems that my trannie had a small leak. it was laboring and i took it to a gas station to check the oil and trannie fluid and i was down a quart of oil and i had NO trannie fluid. he put a quart in and i took it back the next day and i had NO fluid again! so he put 4 quarts in and i took it back the following day to check and it still had a good amount of fluid in it so the leak iseems to be minor, my brother was telling me that there is a sealant i can use in my trannie that seals minor leaks, should i use that and what is it called and can it cause more harm than good?