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So, I am changing the rear axle oil in my 2003 Dodge Ram 2500. It has a Limited Slip differential in it (helical type), and generally, it's understood that no friction modified or LSD additive is necessary. Also the Dodge user manual (with poor punctuation) appears to say, NOT to use any...

I've been looking at this for some time now and I'm not sure what is the best route to go. I am working with a '97 4Runner and Im flushing the cooling system. It currently has green coolant in the system and appears to be clean and in good shape. I generally like to put the original coolants...

I've recently been researching coolant technology and decided I wanted to try and find an affordable way to get the type of coolants the manufacturers are specifying, rather than defaulting to the 1 gallon concentrated gold-colored Prestone I've been using that claim to work for "all makes and...

Again, I'm stunned by how little attention is put toward oils (especially in stores like Napa, etc.) I have been using Valvoline High Performance Gear Oil 80W-90 for a long time, and all of a sudden they are gone. I found a random case for sale on Amazon, but generally speaking...they are...

Does anyone know who makes the Sam's Club gear oils? I couldn't find any good images of labels on the 5 gallon bucket online.

I can't believe how much has changed in just the last three years. I did a lot of this research on these oils three years ago as I began the process of rebuilding several Nissan Xterra/Frontiers that require a GL5 80W-90 Gear Oil for the Front/Rear Differentials. The rear all have LSD in them...

Does anyone know which chemicals a professional fuel injector cleaning machine uses? I have a small setup that will allow me to connect my side-feed injectors to a pressurized system and fire the injectors in order to view/verify a good consistent spray pattern, before installing the fuel...

I've been doing a lot of research on ATF (in general) lately, due to my rapid decline in brand trust. People keep asking me if my ATF smells "burnt"...and I've never been able to tell. I'm a bit new to auto transmissions in the last couple years (never had or wanted one until now), and I simply...