The one time I took my vehicle to a Goodyear service center, I ended up dead on the freeway about 5 miles from town. They didn't tighten the adujustment bolt on the alternator (amongst other things) so the belt frayed and broke, then they tried to tell me I would have to pay for the tow.

I let them get it back and fix it and left. Then I stopped payment on the check for the orginal repair and the one I wrote them that day, wrote them a letter, sent a copy to the AGs office and corporate, never heard from them again.

 

Back to the 75w-140 cost, I just changed the fluid in my rear axle today. The Valvoline synthetic 75w-140 was on sale at NAPA for $10 per quart. Right next to it on the same shelf was another brand of gear lube, synthetic 75w-140, for $24.99 per quart.

Repair shops don't price shop things like gear lube. They phone in the order to the NAPA store and the kid pulls the order from the stock room. The order gets rung up, charged to the shop and the delivery driver runs the parts to the repair shop. I'd guess that someone just grabbed the first bottle of gear lube he saw instead of comparing prices on different brands.

 

You can buy Royal Purple online at JEGS.

http://www.jegs.com

 

On top of that it only takes 3 quarts.

 

Sythetic 75W140 is now available a Wally World for under $10/qt.