Hi, I just bought a new grizzly 700, and the dealer wants $460.00 to do the first service. I also bought a 4 year extended warranty, do you have to have the dealer do the first service or are they trying to get my money? I think that is alot of $ to change the oil and diff. fluids, I can do it all for a lot cheaper myself,but I don't want a problem if I have to take it back for warranty. Thank's for your help Matt