Royal Purple 01300 Max Gear 75W-90 High Performance Synthetic Automotive Gear Oil , 1 Quart (32 Ounces)

I used this stuff to replace the transfer case and differential oil in my 1999 Toyota Land Cruiser, which has a monster V8 engine and previously recorded a best fuel economy of 14 mpg highway. I checked fuel economy carefully over many trips on the highway, always driving conservatively at the speed limit, 65 mph in NY. So I'm very confident in the 14 mpg and that's best case driving. Town and stop-and-go driving was lower. Also the 14 mpg was measured after a recent engine oil and filter change with Mobil 1 Synthetic. Anyway, I'm pretty sure the transfer and diff oil was never changed by the previous owner, based on the condition of the drain screws and the fact that something resembling black pudding sludge dripped out during the draining process. The transfer case took about 4 quarts and the diff about 5 quarts. I "wasted" about one full quart during the oil change trying to flush out the gears by continuing to pump in more fluid during even after it started leaking from the upper fill hole. This did seem to cause a few squirts of additional sludge to come out through the drain. After the change I immediately noticed that the vehicle seemed a little quieter and smoother, it was a barely perceptible change but I'm pretty in tune with the noises this LC makes, and noticed a definite lower sound from the drive train, in fact it was very quiet overall. The big surprise was the gas economy, though. Halfway through the trip, which is about 100 miles and route I drive fairly regularly, I knew the gas mileage was better than before. Upon returning home and hitting the first gas station off the highway, I was amazed to find that my fuel economy went from 14 mpg to 17.42 mpg, an unbelievable 24% improvement. Nothing else changed with the vehicle, same driving style, same gas, etc. The only variable that changed was the use of Royal Purple. Assuming this continues, my fuel range is increased from approx. 280 mi/tank to about 348 mi/tank. This equates to a savings of roughly $15.50 per tank, or for city driving probably around $10/tank. So the whole load of oil will pay for itself fairly quickly. My cost per mile dropped from $0.30 to $0.23. I'm very impressed with this oil, so far it is one of the best things I have done for this vehicle. I will use it in my other car for sure. Expensive but definitely worth the price.

I've been running/using Royal Purple lubricants in all my vehicles for over 10yrs now (might even be close to 20yrs) and don't plan on changing anytime soon. First chance I got after having purchased my vehicles, I switch the oil/lube in all components (i.e. engine, trans, diff, transfer case, etc.) over to Royal Purple products. I don't do it immediately of course, when the time comes for changing the oil and/or lubricant that's when I switch over. All my cars have responded well to the Royal Purple products and I've noticed slight changes in vehicle's behavior (i.e. runs smoother, runs cooler, etc.). Also, if you pay attention to your car, you can notice when its time to change the engine oil (performance degradation, mpg degradation, runs slightly hotter, etc.). I've noticed that I can run longer/more distance with Royal Purple than other oils and/or the oils/lubes they came with. A lot of people have their personal opinions and some don't even think oil matters much, and if you are on top of being consistent with preventative maintenance and don't "abuse" your vehicle much then it might not. However, if you're the type that sometimes forgets about your maintenance schedule or doesn't care for it or likes to drive the s*** out of your car (but not overdoing it of course) I would recommend considering the Royal Purple products.

Ahhh. Really good stuff real like. Especially in my Honda Pioneer that holds 4.9 ounces in the rear differential. Very smooth and quiet operation

Compré este aceite sintético Royal Purple Max Gear 75W-90 para el cambio de fluido del diferencial de mi vehículo y los resultados han sido fantásticos. Desde el primer momento se nota una reducción en la fricción y el ruido, y los cambios de marcha se sienten notablemente más suaves. Es un lubricante de alto rendimiento que ofrece una protección térmica y una durabilidad excepcionales bajo cualquier condición de carga. Además, el diseño de la botella con boquilla integrada facilita muchísimo la aplicación sin hacer desastres. ¡Un producto de calidad premium totalmente recomendado!

Works

Perfect... good stuff...my Roadster appreciates it!

The gear oil is perfect as always, love Royal purple. The Plews pump included however, did not fit the neck of the quart bottle. The collar on the pump was to large and wouldn't screw down to the neck of the bottle. Thus the 4 star.

Great stuff. No issues with any of my cars

I get the items very very fast And I so happy because it's really help me with my car. I can see how deffrent my car now between before I ll only and always use this bran 😊

Questo olio è una garanzia

Que es un producto bastante bueno y cumple con los requerimientos

スクーターのギアオイルに使用しました。 フリクションロスが無くなった そんな気にさせるオイルです

J'utilise de la royale pour tout mes diff et transmission, camion / auto / vtt , jamais déçu