i have an S13 that i use for track and autox, and ive got an S15 helical diff on the way from JSpec.com. i know the Type R runs a helical diff as well, so i thought id ask what kind of gear oil i should run in the rear end. i know some kinds use different friction modifiers so that may effect how the diff performs. any suggestions??

 

uh use whatever fluid the s15 had

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by TypeR 599 &raquo;</TD></TR><TR><TD CLASS="quote">uh use whatever fluid the s15 had</TD></TR></TABLE>
Yes ... thats correct

 

Definently go with what the manufacturer recommends.

 

if i were you, some peanut kernels and motor oil will do the trick. and when you mess your car up. remember my honda-tech screen name

 

helical differential use regular differential fluid.