idea-catalyst

I've used the new "beta search" tool that sure is a lot better than the old search tool, but have not found an answer.

There are a lot of opinions about differential fluids, but I need to change my daughter's diff fluid for no-track, no-winter, Minnesota Spring, Summer, and Fall.

So it never gets very warm but it seems to me that a 75w140 wouldn't be a bad idea in any case since the low temp viscosity is 75.

Hers is a MY01 with 100k miles and I'm thinking of changing to a Royal Purple 75w140. I could also do a Royal Purple 75w90 but my local yokels don't have the 75w110.

Is there any downside to using the heavier oil in colder temps? Since it's a 75w, I assume that it never gets thicker than straight 75w and the extra additives and protection are worth it.

I'd appreciate any thoughts or feedback - there are a lot of threads about diff lubes for track, hi-temp, and other special conditions - but this will be a "cool weather" DD with little or no winter "e.g., cold" driving.

Any thoughts appreciated.




EDIT: we bought it about a year ago with 90k miles and had to rebuild the transmission because the a**hole that owned it before used ATF or something similar. I don't know whether the diff fluid has been changed, but that's why I'm digging into it before she moves it to Minnesota. The tranny is now OK with Honda MTF.

EDIT2:Before you flame for negligent maintenance, she lived in Dallas and I am in Houston (Bellaire) so I have had limited opportunity to have my hands on the car. I now have it for a few weeks for a "catch up" maintenance before she takes it to Minnesota, so there are limits to what I can do (I don't have a heated or "lift" garage and the low temperatures have been in the mid-20s).

So, I think I have a week to complete the appropriate maintenance before it gets driven to Minnesota.
ANY SUGGESTIONS are welcome.

Saki GT

My next fill will be with Amsoil 75W110, so I'd rec'd that - find a local dealer to get it to you.

xeuxx

+1

ahrmike

I'd do the basic stuff:

Trans (you did already)
engine oil (something good: amsoil/syntec/M1EP)
differential fluid (M1/syntec/amsoil) I would personally not go with RP..just a preconceived notion that they suck...and anecdotal evidence to back it up

check tires/brakes for even wear/low tread/friction material

check for a leaky radiator

check and possibly change the spark plugs to the proper NGK iridiums.

Thats all I can possibly think of that are known to go bad in the S2000. teach your daughter how to check the engine oil every other gas fill up. A low oil engine = death for the F20.

idea-catalyst

OK, so Amsoil or LE best, M1 ok, RP not so much. She has replaced tires and I have hammered her about checking the oil level EVERY fill-up even though she's not heavy into VTEC. I'll keep looking around for Amsoil, LE, or M1 diff fluid.

THANKS FOR THE TIPS!!!

Any others are welcome - particularly sources for Amsoil or LE in Houston.

Swiftoy

Since you only need one quart why not buy directly from amsoil. If you were a user of there products it would then be to your benefit to become a preferred customer.

whiteboyjoe2000

RP?

ILowNslowI

where can I find amsoil or le in Houston?

idea-catalyst

I've heard more "not good" things about RP than "good things". More info would be appreciated, but the consensus on this forum seems to be for Amsoil, LE, or Mobil 1 and not for RP.

Thoughts, Comments?

ahrmike

Thats what I believe. Also, since you're looking at longer change intervals make sure you use m1 extended performance for the engine..a couple bucks more but its supposedly a lot better