Best Spark Plugs and syn diff fluid?

redranger

Hi my name is Dave and I'm new to the Town Hall. I
really enjoy the discussions on this site.
Anyways, my question comment is are Synthetic
Differential fluids worth it. I'm thinking of going
with Redline. My other question is what is the
best spark plug. My understanding is that for
European/American cars/trucks it's Bosch or
Autolite, NGK for Japanese and Champion for small
engine. Splitfire I hear is total garbage. Thanks
for all help and I hope this topic isn't redundant.

redranger

The differential is on a '94 Ford Ranger 4x2 with a manual trans if it matters. Thanks again!!

billybreathes

I used Split Fires in my Mitsubishi and they made the car quite a bit faster and more fuel efficient. After using them, I never went back to regular plugs in that car. However, I have heard that they shorten the life of the engine, but I don't know how.

I'm using Bosch Platinum +4 in my Subaru, and it feels a bit more powerful and I get 1 mpg more mileage. No big deal.

markbuck

see title!

pat455

a discussion going on right now in our Aftermarket and Accessories Conference:

Spark Plugs - Your Favorite Brand And Type And Why

There is also an archived discussion there (you can read it, but you can't post in it):

Bosch Platinum +4 Spark Plugs

If you want to check out either of those topics, just click on the highlighted links.

Pat
Community Leader/Maintenance & Repair

bnormann

Well, we have the spark plugs pretty well covered, but there is very little information that I can find about lubricating differentials.

One topic here on Limited Slip Diffs:

http://townhall.edmunds.com/cgi-bin/townhall?c=Maintenance&t=922

and one here:

http://townhall.edmunds.com/cgi-bin/townhall?c=Coupes&t=18

FWIW, I used to use Redline synthetic in my Honda CRX transaxle and liked it a lot. See if they have something in the right grade for your differential.

Bruce

redranger

Thanks for all your help!!!