sidwin

My 08 has 75k on it. I never tow anything with it. I read the service manual but didn't see anything in there about transmission fluid or diff fluid change. When do you all change? I saw they said plugs at 120k. I guess that is when timing belt should be done too.

Does anyone have a write up on how to change brake fluid on our trucks? I remember in my gs the system does a start up check so bleeding fluid with a fluid pump doesn't work that well.

Thanks -Sid

470reasons

More info on maint. schedule. Click on 'view full schedule' to see everything.

http://www.driverside.com/service-sc...style_id=37929

RCsGX

If you haven't done so already, sign up here and you can view the scheduled maintenance.
http://drivers.lexus.com/lexusdrivers/home

• Trans fluid is a "lifetime" fluid. That being said I would probably have the dealer change it at 150K
• Diff / transfer fluids, it won't hurt to change them now
• Plugs are good for 100K-120K miles.
• Timing belt should be changed at 90K. You can go longer but the sooner the better since our engines are an interference engine and a damaged tbelt can destroy your engine
• There's no write up about changing brake fluid but there are a few threads. The front is just like any other bleeding but the rear you just keep the brake pedal pressed and the system will pump the fluid out on it's own. See attached PDF

GX470Fan

I agree with all of this above. Although I'd just like to point out that I think that you should change out your engine and cabin air filters at least once a year, depending on where you live and how you drive. Personally, I change them every other oil change, or more often, as needed. I live in a very dusty climate and that tends to make those filters pretty dirty pretty quickly. It's a relatively inexpensive way to maintain your GX in top form. You can easily buy the parts yourself and replace them. I have Jiffy Lube do it when I get my oil changed. Luckily, they actually stock the parts. The cabin air filter is a bit pricey a about $35 for a very simple piece of equipment, but I like clean, filtered air in my GX. The engine air filter is about a third of that, so that's a no-brainer. I'm not sure what the manual suggests for oil, but I always use FULL synthetic 5W/30 and buy a OEM oil filter for Jiffy Lube to use. I had the same routine with my previous 4Runner Limited and had zero engine problems until about 130k miles when a collision with a deer to totaled my truck. Again, I don't remember what the manual says to put in the transfer cases, but I have that done at Jiffy Lube and haven't had any problems so far. My two cents. Love my GX!!

RCsGX

Using Jiffy Lube is not loving your GX.

470reasons

LOL! Just because they strip the threads on the oil drain plug and put the new oil filter on waaaaay too tight doesn't mean...yeah, it does.

zes

I wonder if anybody here is old enough to remember the differential / solid axle in the old rear wheel drive cars. How often was the oil changed in those differentials? They are still used in modern day trucks and jeeps. The 300h CVT is similar to those, ie it has no clutches or friction surfaces.

chiph9

My high school & college cars were RWD with solid axles. I don't think I ever changed the oil in them because I was an ignorant teenager.
Ford said to replace the rear diff fluid every 15,000 miles.

Modern petrochemical chemistry is much better, and the Lexus manual says do it every 15k only if you regularly tow or live in the mountains, or dusty environments. Otherwise do it every 30k miles.

Chip H.

wowzer

is the timing a belt or chain?
also, could you post the pdf? I couldn’t find it on Lexus’s website. Thanks

ALAN553

No, it’s fiberglass…chains don’t usually need to be changed