So I've been through the forums and am glad because I was about to dump GL-5 into my 5spd and transfer case. I know not a huge deal on the xfer case but why risk a leak. Now i'm trying to find out where to buy the right stuff, Autozone, cskauto, all the local spots don't seem to carry GL-4.


Reference:

Amsoil SVGQT-EA 75w-90 GL5 1qt - amsoil 12.75, 1gal - NA, Summit - NA
MTGQT-EA 75w-90 GL4 1qt - amsoil 12.85, 1gal - NA, Summit - NA

Redline 57904/57905 75w-90 GL5 1qt - redline 11.95, 1gal - redline 47.95, Summit - 1qt 10.95
50304/50305 75w-90 GL4 1qt - redline 12.49, 1gal - redline 49.95, Summit - 1qt 9.95
58204/58205 HD Shockproof 1qt - redline 12.95, 1gal - redline 51.95, Summit - 1qt 10.95

 

i'd say go to napa or car quest and have them order it for you. those two stores are where dealerships and pro shops get their parts from so they're a good source!

 

No dice at napa or carquest (at least online). Looks like it's Jegs or Summit

 

i would go into the store and ask. i bet napa can get it for you.

 

http://www.redlineoil.com/product.aspx?pid=46&pcid=7

And they ship FAST.

 

I used Castrol synthetic from Orielly's.
It was only about $10 a quart.

 

x2. Use their MT-90 in your transmission and the 75W90 in everything else.

 

I found mobil 1 at auto zone, believe it was gl5 though, 75-140 for a taco.

 

I saw the Orielly's stuff but it wasn't GL4 for the 5spd. I caved in and bought it online from Summit last night for $132 with shipping. 5qts Heavyweight Shockproof for the diffs and 6 qts MT-90 for the 5spd and trans case.

The subtotal was $140 from redline without shipping or tax. Using the cheapest conventional GL5 ONLY oils I could find at the local shop still would have been right at $70. It's a lot to pay for oil but my 5spd shifts like crap so we'll see how she does with 230k mi on her.

 

I recently replaced the oil in my differentials with Amsoil GL-5 (80w90). I placed the order online and drove down to the local Amsoil warehouse to pick it up.

Since they don't have a dist center in Phoenix, you'd have to get it shipped, of course.

 

Ya online was the best price, for redline oil anyways from Summit. I was short on MT-90 however and used redline's dealer locater. Found Carrol Shelby Enterprises downtown selling them at list. Posting this as reference for the Phoenix peeps.