05-28-2016, 04:24 PM | #15 |
Drives: '21 ZLE A10 Join Date: May 2012
Location: Mechanicsville, VA
Posts: 6,809
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you don't need any pics...this procedure is self explanatory. Remove the belly pan and drain the oil via the two sump plugs and R&R filter.
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'21 ZLE A10 Wild Cherry PDR 2:00.78 VIR Full 10.68@131.69 1.68 60'
'17 ZL1 A10 Mosaic Black PDR/Nav 2:03.08 VIR Full 11.003@129.2 1.75 (sold) '15 Z/28 #325 Black a/c & stereo. 2:10.1 VIR Full (sold) '12 ZL1 A6 Black 10.52@131 1.55 60' 2:13 VIR Full (sold) |
05-30-2016, 05:14 PM | #16 |
Drives: 2015 Z28 + Piper Comanche Join Date: Nov 2015
Location: PDX
Posts: 227
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You were correct it was easy. I did the rear dif and the oil change today. I'm going to post my how to notes although much of this has been posted already.
I built some ramps from 2x6 boards. The bottom piece should be about 4 1/2 feet. I did mine a bit short at 4'. I left about 10" for each step up but shorter as they went up. I needed four levels. Three was just too tight for the oil change to have room to work. Of course chock the wheels and e brake on etc. Make sure the spoiler will clear the steps / spacing you choose. Last edited by Hunt-man; 05-30-2016 at 05:35 PM. |
05-30-2016, 05:21 PM | #17 |
Drives: 2015 Z28 + Piper Comanche Join Date: Nov 2015
Location: PDX
Posts: 227
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The rear dif was super easy. I backed up on the ramps, only needed three boards. Use a 3/8" ratchet and a 12" extension. Two plugs, one comes out with just the ratchet, the other the extension works. You'll need just over a quart of the 75/90. I used the Mobile 1 synthetic gear LS. I was told that had the limited slip additive in it. You'll need a hand pump to get the lube in. Again, super easy.
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05-30-2016, 05:34 PM | #18 |
Drives: 2015 Z28 + Piper Comanche Join Date: Nov 2015
Location: PDX
Posts: 227
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The oil change is a bit more challenging but not hard. The main issue is room under the car. Really wish I had a lift, it would be easy.
There are five silver bolts behind the front splitter, that hold the front of the belly pan on. 10mm bolts. Remove the five silver bolts. There are another 10 or so black 10mm bolts that hold the pan on as you work back. An angle driver / drill works great. There are two friction / push in pull out plastic attachment points at the very back of the pan. The previously mentioned pry tool worked great. Once you get the pan out of the way, there are two drain plugs. They are both 15mm and easy to get at with a socket wrench. I pulled the one towards the front first and most of the 10qts came out. Pulled the 2nd and a bunch more oil came out. The oil filter is right there. A 76mm Oil Filter Cap Wrench is the perfect tool. I had to go with a Mobil 1 filter but it looked identical to the standard filter. It took all 10qts. I think it would take another 1/4 quart. Costco has the Mobile 1 5w/30 oil. Last edited by Hunt-man; 05-30-2016 at 05:46 PM. |
05-30-2016, 07:01 PM | #19 |
Drives: 2015 Z/28 Silver #713 Join Date: Feb 2016
Location: Gilbert AZ
Posts: 151
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When I did mine -I drained the front plug first then the second (rear) tends to hit the crossmember while draining. I lifted mine from the front pinch points with two floorjacks (a little at a time), then secured with jackstands. I lowered the front back down and no more oil came out -So next time Ill just drain it with the front lifted.
This hand pump works great for the Transmission and Diff. http://www.amazon.com/Plews-55001-Lu...ilpage_o07_s00 Last edited by chip4; 05-30-2016 at 07:14 PM. |
05-31-2016, 10:35 AM | #20 | |
Quote:
GM does not recommend using the Slip Additive in our Z/28's unless you're bothered by the noise the rear diff makes at low speeds. They claim it actually reduces torque delivery during aggressive cornering. |
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05-31-2016, 12:54 PM | #21 |
Drives: 2015 Z28 + Piper Comanche Join Date: Nov 2015
Location: PDX
Posts: 227
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That's good to know. The noise at low speed doesn't bother me at all. I will see if it sounds any different now. Track day on Friday!
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02-02-2017, 02:51 PM | #22 |
Cajun Mariner
Drives: 10 Camaro SS/RS 15 Camaro Z/82 AGM Join Date: Mar 2010
Location: Real Cajun,Golden Meadow, LA.
Posts: 673
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I just did the differential oil change, In my manual it listed the 6.2(L99, LS3) & 7.0 at 1 quart, Check to make sure U not looking up ZL1 as it has a bigger rear differential for the extra HP
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'10 Camaro 2SS/RS Red Jewel VVTLS3/A6
'15Camaro Z/28 Ashen Gray |
02-02-2017, 03:04 PM | #23 |
Drives: 2015 Z/28 Black Join Date: Nov 2016
Location: Los Angeles
Posts: 340
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On my first oil change, I put in two "goldplug" magnetic drain plug bolts, high quality, made in USA, powerful magnets. You can find goldplug online. We will see what they grabbed at the next oil change.
I use those new super long, super wide race ramps (raises the bottom of the wheel 10") with the race ramp extension to reduce the angle to 6 degrees. Super expensive, but, super fast and safe....
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2015 Black Z/28
70 Chevelle SS396 01 M3, 88 Land Cruiser |
02-02-2017, 10:37 PM | #24 |
Raging Bull Reborn
Drives: '09 CGM Z063LZ '15 RH Z/28 #0631 Join Date: Mar 2012
Location: Broken Arrow OK
Posts: 765
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Fill only thru the the dry sump. If you want horror stories search Corvette Forum for folks whose C6 Z06's had a grage or worse a stealership add oil through the valave heads instead of the dry sump, and ended up with the oil change hydrolocking the engine.
see horror stories here http://www.corvetteforum.com/forums/...nightmare.html and here: http://www.corvetteforum.com/forums/...il-change.html this is from corvette forum on how to change a dry sump... http://www.corvetteforum.com/forums/...ump-specs.html and from Halltech performance: http://www.corvetteforum.com/forums/...procedure.html
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Toy 1 '15 RH Z/28 w/AC & Radio S/N 0631 Toy 2 '09 CGM Z06 3LZ My DD: '17 Ford Mustang GT Her DD: '14 F150 Ecoboost 3.5 |
02-04-2017, 10:40 AM | #25 | |
Lover of Speed
Drives: 2018 ZLE Join Date: Feb 2016
Location: Phoenix
Posts: 266
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02-04-2017, 10:51 AM | #26 | |
Drives: 2014 Z/28 #82+#192, 18ZLE 66Nova Join Date: Oct 2008
Location: By the lake in AZ
Posts: 15,719
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Quote:
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02-04-2017, 12:36 PM | #27 |
Drives: 2015 Z28 + Piper Comanche Join Date: Nov 2015
Location: PDX
Posts: 227
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02-04-2017, 03:21 PM | #28 |
Drives: Z/28 Join Date: Oct 2015
Location: NJ
Posts: 538
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I live in NJ and it gets pretty cold here in the winter and pretty hot and humid in the summer. I tried 15W50 once and the engine sounded like a diesel ( lifter noise ) until the oil got hot. I also took foreeeeevvver to get the oil to temp. I now use 5W30 all year round, track / street. I had the oil over 300°F and it still had decent pressure. In a warm climate 15W50 may be the way to go..
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