title says it all...

I've got 6500 miles and want to do a synthetic conversion (everything - engine, AT, xfer case, axles)

 

amsoil if between those 2, but I use mobil1 - I like it just as well and its cheaper.

 

i always use royal purple, haven't tried amsoil

 

I've done 3 oil changes so far and have used Mobil 1 syn. each time.

Chose Royal purple syn. to replace the factory manual trany fluid at about 2500 miles.

I'd like to do my diff's with Mobil 1 syn. as well....what weight are you using in them?

Best,

Tony

 

I use Royal Purple in my Camaro. I know guys who swear by it. I do too. It's good stuff. A little expensive but you only have to change it every 6k miles. I've also heard there are some benefits to using it. I think HP/torque increases by like 3%. But those are probably just rumors.

 

Amsoil.

You can get a 'preferred customer' account and save 20-25% off retail when buying direct. Amsoil makes really good synth grease too. :-)

js.

 

How do you go about doing that? Do you have to buy a certain amount of products from them or what?

 

It's $20/year.

amsoil.com/a/wholesale-preferred-customer

js.

 

If you have a Rubi the diffs are alredy synthetic from factory as stated by my dealer. For the engine since i am lazy dealer does the oil change so what ever they put in is fine with me, since it has a full warranty.

 

i use Mobil1 for the oil and just switched the diff fluid to Mobil1 and got better MPG also use Mobil1 in my Trans Am, nothing else!
re: discount, i am a Costco member and take advantage of the coupons they mail out to my house. just saw a coupon for $9 off a case (of 6 quarts). limit 2. also am an executice member, so i get another 2% back