How to Pick the Right 2015 Lexus RX 350 Differential Fluid
Need to change the differential fluid on your Lexus RX 350? We have everything you need to know.
Written by Bonnie Stinson
Reviewed by Melanie Reiff
If your 2015 Lexus RX 350 needs new differential fluid, you can actually do it yourself! Just be sure to get SAE 75W-85 gear oil and follow any other manufacturer recommendations before you get started.
Just because Lexus is a luxury brand doesn’t mean you need specially-trained mechanics for every maintenance task. If you want to save a little money and have some time to spare, you can change out your differential fluid quickly and easily.
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The best differential fluid for the 2015 Lexus RX 350 is any SAE 75W-85 Full Synthetic API GL-5 Gear Oil. You can browse different kinds and
purchase them online here
. The “75W-85” is the lubricant’s viscosity rating, while “GL-5” tells you the additives that are in the fluid. While there are several good differential fluid options, here are some of the top picks:- Motul USA® Motulgear Technosynthese™ SAE 75W-85 API GL-5 Gear Oil
What is differential fluid—and why does your Lexus need it?
On your
Lexus
, your differential supplies power evenly to each wheel. It’s composed of several moving metal parts, so keeping those parts lubricated is essential for your differential to function correctly. That’s where the differential fluid comes in.Without
differential fluid
, all the moving parts of your axle and wheels would eventually grind together, causing major issues and expensive damage. Keeping your differential fluid clean and changed regularly will keep your Lexus performing well.How often to change 2015 Lexus RX 350 differential fluid
Most drivers know they need to replace their engine oil, but what about differential fluid? If you notice any of the following signs, you’ll want to change your differential fluid soon:
- Burning smell from the gearbox
- Strange noises, especially whirring, howling, or grinding
- Unusual vibrations
Changing your differential fluid should also become part of your
regular maintenance routine
. For the RX 350, Lexus recommends changing your fluid every 30,000 to 50,000 miles. However, it’s best to play it safe and have it changed closer to the 30,000-mile mark instead of putting it off.If you want to try your hand at changing your differential fluid yourself, keep reading!
How to change your Lexus’s differential fluid
Before doing any maintenance on your vehicle, check your owner’s manual to make sure you have the right tools and differential fluid. But, most likely, you’ll need the following tools:
Step 1: Use your carjack to lift the vehicle, then secure it on jack stands. Find the differential drain bolt and remove it.
Step 2: Allow the differential fluid to drain completely; then, replace the drain bolt.
Step 3: Locate the gear oil fill bolt and remove it.
Step 4: Use a pump to slowly add your differential fluid.
Step 5: Add the recommended amount of differential fluid to the differential.
Step 6: Reinstall the fill bolt.
How to find affordable Lexus insurance
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