Rear diff fluid change advice

[Casius]

Hey guys, I just changed my rear diff fluid and I'm slightly concerned so I would really appreciate some advice.
Of course this is brought on by myself but after I did the change I read my Bentley manual and it says to use GL5 rated fluid. What I put in is AmsOil 75w90 fluid but after some investigating, ie I read the label, it is only GL4. Should I buy some GL5 and put it in or is the GL4 ok?

Second little thing. I put the rear of the car on ramps to do this little job, now it's in the driveway so its sloped back a bit but still the car doesnt exactly sit horizontal. I filled it till it started leaking out the fill hole, but since its on an incline I think there is more fluid in it then there should be. Should I be concerned with this? IS there any possibility of ruining the diff by putting too much fluid in?

Thanks in advance everyone

[Casius]

Sorry I think I answered my own question... GL5 in the rear and GL4 in the tranny correct?

[chrom]

Sorry I think I answered my own question... GL5 in the rear and GL4 in the tranny correct?

that's correct.
GL5 is > synthetic than GL4, but you can keep this summer the Amsoil
dealers use GL 4
good for our winters is Castrol Syntec GL 5 imported check wal-mart 12$

http://www.castrol.com/castrol/secti...tentId=7036193

[Casius]

Oh hey a fellow Canadian... finally someone that knows the pain of trying to maintain a car with these crazy ass seasons we have :)
Thanks for the reply

[n7plus1]

i just got my amsoil order for my tranny and diff flushes..was it fun?!

[Casius]

The diff is EASY, I haven't done the tranny yet but I don't think its much harder.
One piece of advice, GET A PUMP, I'm going to try and find one tomorrow... I Mcgyverd a pump like contraption out of an old spray bottle... I pumped for 40 mins to get 1.5L of fluid into the diff haha