Mark Booth wrote:I change the oil in my EX35 and find it quite an easy process. Here are a few "tips" that might help others with the oil change...
First off... The oil sump on the EX35 runs perpendicular to the motor. Meaning, the sump runs east/west while the motor and transmission run north/south. Also, the sump is located near the very front of the engine (completely hidden under the bottom pan). Because of the location of the sump, the EX35 must be level when you drain the oil (or be slightly pointed downhill -- nose slightly lower than the tail). This means you can't drive the EX35's front wheels up onto ramps on level ground to drain the oil. The rear of the engine could end up being lower than sump and, thus, you might not drain all of the old oil.
Frankly, the EX35 sits off the ground enough that it is possible to squeeze under the car enough to change the oil without jacking it up. But I prefer more room to maneuver so here's my procedure:
1) I back the EX35 into my garage. I then pull forward just to the point that I can open the driver's front door without hitting the side of the garage opening. This positions the front wheels in the driveway and the rear wheels in the garage. I then place my ramps (Rhino Ramps) in front of the front wheels and then drive the EX35 up onto the ramps. The result is my EX35 is positioned so the rear wheels are just at the spot where the slopped driveway meets the level garage floor and the front wheels are on the ramps. Since my driveway slopes downhill away from my garage, the top of the ramps are just a tad bit lower than the level spot where the rear wheels are positioned. The EX35 is then almost level, with a very slight tilt downhill at the nose. PERFECT for changing the oil. And, thanks to the ramps AND the downhill slope of the driveway, I have PLENTY of room to get under the front of the car. In fact, there's almost too much room because the used oil has a bit of distance to free-fall.
2) I open the hood and remove the oil filler cap.
3) Move to under the car and use a 10mm socket on my battery-powered electric drill/driver motor to remove the bolts around the circumference of the bottom splash pan. (NOTE: The four bolts along the BACK of the splash pan are slightly different than the rest of the bolts around the circumference... be careful to put those four back in the right spot when reinstalling the pan.) At this point, the splash pan is still held in place by three push-pin type of fasteners across the center of the pan. Using a slot screwdriver, gently pry out the center pin of the left and right push-pin fasteners and pull the fasteners from their holes. Now you'll have a splash pan that is perfectly balanced in place by a single push-pin fastener. Gently remove the middle push-pin fastener and remove the splash pan from under the car.
NOTE: With a battery drill/screwdriver, removal of the splash pan takes less than 2 minutes! It's a piece of cake!! And Infiniti's use of the push-pin fasteners across the middle makes it VERY easy to remove and reinstall the pan! Excellent!
4) The rest is standard procedure... Place a oil drain pan under the sump (the east/west black pan with the bolt in the end of it that faces the front passenger-side wheel), remove the drain plug bolt, and drain the oil. You'll see the oil filter is VERY easy to access. On the RWD models, it's directly above the oil drain plug. A mere few inches above! Very convenient! You don't even have to move the oil drain pan to catch the oil draining from the oil filter. (Be careful, the oil has a tendency to spray out of the filter bottom fairly quickly as you loosen the filter.) If you have an AWD model, the oil filter isn't the same side as the drain plug. Rather, it is on the front of the engine pointing toward the radiator. But it is still located nice and close to the bottom of the engine near the sump. Once all the oil is drained, clean up the area around the filter with a shop rag, including carefully wiping the surface where the oil filter mounts. Lubricate the O-ring on the new filter with some fresh oil (yes, this step is VERY important as it prevents the O-ring from binding and possibly breaking when installing the filter) and screw the new filter in place. Tighten it HAND TIGHT. Meaning, as tight as you can get it with your bare hand as long as it is at least 3/4 of a turn from the spot the filter O-ring first contacts the base but not more than 1 full turn. Reinstall the drain plug bolt, being sure the copper drain plug washer is in good shape (I replace my drain plug washer with every 2nd or 3rd oil change). Tighten to the torque specification indicated in the owner's manual (I forget what that spec is so be sure to look it up!). Then, move topside to put in the new oil. The oil capacity of my 2008 EX35 Journey is 5-1/8 US quarts. So, I start off by putting in about 4.75 quarts, reinstall the oil filler cap, and start the engine and let it idle for 2-3 minutes. While it is idling, I check for leaks around the oil filter and drain plug (be careful under the car when the motor is running!!!!!!!). Then I shut off the motor and move back under the car to reinstall the splash pan....
5) Position the splash pan in place under the car and reinstall the very center push-pin fastener! VOILA! A perfectly balanced pan that you don't have to hold up while you are trying to install the bolts and other push-pin fasteners! VERY clever design by Infiniti!! I set my battery drill/driver to the screw drive position and set the torque clutch so just driving right up until the driver clutch skips is a couple of foot pounds to hold them in place. I've never had one fall out and, again, you can reinstall the pan in mere minutes.
6) After checking that everything is out from under the car, I carefully back the EX35 off of the ramps into the garage so all four wheels are on a level surface. After the EX35 has sat with the motor off for about 5-10 minutes, I pull the oil dipstick, wipe clean, reinsert and check the oil level. With every change so far, I've had to add the last of that 5th quart of oil (making 5 quarts total). This brings the level on the dipstick up to just a little bit below the hole in the dipstick below the full mark. I could put in another eighth of a quart but I never bother to. The car doesn't burn enough oil between 3,000 mile changes to even register the difference on the dipstick.
The long description above might make it seem like the oil change on the EX35 is difficult. It isn't! In fact, I've owned MANY cars that were far far more difficult. Don't let that splash pan removal slow you down! It is incredibly easy and quick to remove the splash pan with a battery-operated drill/driver! And, best of all, once the splash pan is removed, the drain plug and filter are "right there", conveniently located for easy removal!
Lastly, I use regular dino oil in all of my cars! I experimented with synthetic oil (Mobile 1) in a couple of my cars and they both started having minor oil seeps around the gaskets once I'd been running synthetic for awhile. Switching back to dinosaur oil eliminated the seeps. And, if you change every 3,000 miles, the dino oil offers PLENTY of protection.
Mark
P.S. My thanks to my friend Tom for the recommendation on placing the ramps in the driveway so the car will remain level.
I call bull-s*** on this.Mark Booth wrote:The oil sump on the EX35 runs perpendicular to the motor. Meaning, the sump runs east/west while the motor and transmission run north/south. Also, the sump is located near the very front of the engine (completely hidden under the bottom pan). Because of the location of the sump, the EX35 must be level when you drain the oil (or be slightly pointed downhill -- nose slightly lower than the tail). This means you can't drive the EX35's front wheels up onto ramps on level ground to drain the oil. The rear of the engine could end up being lower than sump and, thus, you might not drain all of the old oil.




Nice. Thanks for sharing the details. I'm a bit surprised that you took on this job, as I recall you don't like dealing with disposal of the fluid.XIS wrote:Just changed my rear differential fluid yesterday afternoon. I don't know why I was so intimidated by it in the past??
As it turned out, my son's CRV with 176K was making some noise back there. The CRV forum suggested that fluid be changed with their new preferred fluid and it solved the problem just like that. It was SO easy, that I decided to tackle the EX the next day.
I didn't even jack it up. Crawled under there and loosened the fill plug. (You need a 10mm Hex Bit). Then I loosened the drain plug. Slid the oil pan underneath the diff case (tight fit). finished unscrewing the drain plug by hand. The plug was COVERED in gunk - think stinky almost burned-looking with a good amount of metal dust. I cleaned off the plug and stuck it back in while it was still draining and got more metal shavings. I cleaned it off again and repeated a few more times. Tightened her up, removed the oil pan and attached the pump to the Castrol 75W/90 synthetic. It took just under 2qts and much less time and effort than an oil change. Now that I saw all the crap on the plug and see how easy and quick it was, I will probably do this every 24K miles. (I am currently at 49K)
That is great! I am looking forward to see those pictures. I know where the front differential bolts are from reading online, but transmission and transfer case i could not find online. This will save me time once i open the cover underneath.NJGuy wrote:My EX has just passed the 61K mileage mark, I had a chance last weekend to do a little maintenance. I drained and filled the both the transmission and transfer case fluids. I also took some photos. When I get the chance, I'll put up a few posts about them. I'm not sure if I should put them here, or make new threads about them though.
I'm going to post a new thread on what I did, and it will cover your questions. However, here are my quick answers for now.AWGD8 wrote: That is great! I am looking forward to see those pictures. I know where the front differential bolts are from reading online, but transmission and transfer case i could not find online. This will save me time once i open the cover underneath.
I will soon be draining and filling both differential fluid, transfer case and transmission.
Dealer wants $450 plus tax on these services. BTW, did you use oem fluids for differential? transmission and Transfer case the same fluid? Do you have to buy new crush washers for all bolts?
For differential i am thinking of going Amzoil severe gear 75wx90, but car is under warranty until Aug. of 2016. I am sure transmission and transfer case should be OEM.
Do you guys recommend doing this services through the dealership?
I know DIY and keeping the receipt for future proof is ok, but that will take time to resolve if there is a major issue ( problems that might not even related with fluids, such as transmission sensors, engine sensors etc.) but stealership will insist incorrect fluid levels etc..etc...![]()
Thanks!
So far my dealership service dept. is great! The only problem is they charge more than what i normally read online. Rear differential oil change cost $99.95 plus tax etc... Also, my car is 5 years old and I noticed that I had conversation with 4 different service advisers in the span of 5 years.NJGuy wrote:I'm going to post a new thread on what I did, and it will cover your questions. However, here are my quick answers for now.AWGD8 wrote: That is great! I am looking forward to see those pictures. I know where the front differential bolts are from reading online, but transmission and transfer case i could not find online. This will save me time once i open the cover underneath.
I will soon be draining and filling both differential fluid, transfer case and transmission.
Dealer wants $450 plus tax on these services. BTW, did you use oem fluids for differential? transmission and Transfer case the same fluid? Do you have to buy new crush washers for all bolts?
For differential i am thinking of going Amzoil severe gear 75wx90, but car is under warranty until Aug. of 2016. I am sure transmission and transfer case should be OEM.
Do you guys recommend doing this services through the dealership?
I know DIY and keeping the receipt for future proof is ok, but that will take time to resolve if there is a major issue ( problems that might not even related with fluids, such as transmission sensors, engine sensors etc.) but stealership will insist incorrect fluid levels etc..etc...![]()
Thanks!
1. transmission and transfer case were uncovered on my EX. Once you get under the car, you won't be able to miss them.
2. I did not get to the differential yet. I did not buy OEM fluids, but instead bought some of the Wally World (WalMart) Supertech brand 75W-90 semi-syn differential oil for when I do the service. The FSM specifies at the minimum 80W-90 GL5 gear oil, but makes no mention of a conventional or synthetic composition. I don't think the Wally World stuff can be any worse than a standard gear oil on the market that meets Infiniti's 80W-90 GL5 requirement.
3. I used Nissan Matic-S for the transmission, but decided to go with Valvoline Maxlife Dex/Merc for the transfer case.
4. I only bought one crush washer, which was for the transmission drain plug.
5. Its up to you if you'd like to use OEM for the transmission and transfer case. If you're under warranty, I'd at least use OEM fluid in the transmission, as it does most of the heavy lifting and probably costs much more to fix/replace than the transfer case in the event of a failure. The transfer case fluid can be debatable, as you mentioned it doesn't get worked nearly as much. It only specifies Matic-J or Matic-D, not Matic-S.
6. I don't have any money in an extended warranty, so for maintenance I'm free to do as I see fit at my own risk.
How has your dealership treated you so far? Do you think they would look for any little thing to deny a warranty claim, or do you think they'd go to bat for you when dealing with Infiniti corporate? That might give you a better feel for what you should do.
If I were in your shoes, I'd probably do some of the less important stuff, and let the dealer do the more critical items. Either that, or you can space out the services over a couple of visits, following order of the list in which you prioritized each service.
BTW, I do think you're right about the non-mechanicals of these systems that usually are the first that go bad.
I agree. I started this thread because while I have some experience doing work on other cars, I was starting from zero on Infinitis. I was looking for tips, shortcuts, suggested tools, and caveats to save me a little time and a lot of frustration, and to lessen the learning curve when I chose to start doing work on my car. I kind of also wanted to share with others here anything I've learned or picked up when working on my EX if it was their first time attacking a job on theirs. In addition, this car isn't a volume seller and the activity on this forum reflects that. Not that I could really change the fact, but I at least wanted to see if I could get some helpful and meaningful discussion going on this topic and specific to this model vehicle.TonyN wrote:The EX is just like any other car, nuts and bolts. I have worked on all my personal cars, BMW M3, Mercedes E500 / CLK 500, Toyota Supra Turbo, Mazda Rx7, etc... I have owned over 20 cars and one thing I learned is if you can work on your economy box you can work on higher end cars, they take more work because of the way things are put together but at the end of the day it nuts and bolts, you just have to know what you are doing and the steps to take.
I also hardly do my own oil changes now. To begin with, they don't cost all that much more than doing it yourself, and the dealership techs usually give the car a good look over to point out any items that may need to be addressed. That's when I consider whether or not I'll take on that job, or let someone else do it.TonyN wrote:I also have figured that some things are not worth me doing, like oil changes, I buy the oil and pay my local shop $15 bucks to change my oil and dispose of the old oil/ filter.
I believe that when you get older and time becomes a premium most people tend to pay to get things done because time is more valuable, I no longer do my own oil change because for the time it takes to change the oil and then take the old oil to dispose I rather just pay someone.
It all depends on how much time I want to spend and what the shops are charging or even if I feel like doing the work myself.
I cut my teeth as a teen in the mid-90's working on Chrysler products from the late 80's (not sure why my parent's liked them so much, as I didn't). I can't say I did that much work, as I was pretty much self-taught and couldn't take on any serious work without risking disabling the car. The explosion of internet forums after the millenium helped me a little bit; more so with my motorcycles than with my cars, but I think the help available on car forums caught up fast. But nowadays it seems like we can find a how-to for almost anything out there, especially on YouTube. I don't have near the amount of experience you do working on vehicles, so I feel the need to see what a new-to-me job entails prior to taking it on.TonyN wrote:I my early 20s I enjoyed working on every car and motorcycle, i did everything on my Ducati myself.
Care to show us a couple of things with us here?TonyN wrote:The funny thing is I still show people how to work on their cars but am too lazy to work on most of my own things.
Did you ever create a Coolant swap thread?NJGuy wrote:FYI, I was able to sneak in some work on my EX this past weekend. Did the front and rear diff fluid, serpentine belt, coolant change, and also a tire rotation while the car was up on the jack stands. I'll try to put up a new thread about this, along with a few pictures when I have some more free time.
I never got around to making one. If it's something you plan on taking on soon, I'd check out these links as I think they're quite helpful.EXceptional wrote: Did you ever create a Coolant swap thread?