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C5 oil change special procedure??

claprood

Member
Joined
May 29, 2007
Messages
7
Location
ma
Corvette
1998 nassau blue
The owners manual for my 98 C5 says there is a special procedure to change the engine oil. Anyone know what needs to be done oother than removing the drain plug and filter?
 
Joined
Mar 27, 2003
Messages
3,676
Location
Mustang, OK
Corvette
'13 427 60th vert - '21 Silver Flare Coupe - CTS V Wagon(4-door Vette)
Well, you're supposed to lift the car level or have the rear slightly higher than the front then drain the oil. This is supposed to get the oil out of the rear of the pan.

I never let it bother me when I owned C5s. I just rolled them up on ramps and changed the oil and filter. Sure, it leaves a little old oil on the pan but not enough to make a little bitty bit of difference.
 

99WhiteC5Coupe

Well-known member
Joined
Jan 19, 2002
Messages
293
Location
Cincinnati, Ohio, USA
Corvette
1999 White Coupe
You should also wait 5-10 minutes after pouring the new oil in before you start the engine - this delay allows the oil to fully reach the pan due to the baffles in it.

I also pre-fill the oil filter before installing it.

Good luck.
 
R

robs817_c5

Guest
You should also wait 5-10 minutes after pouring the new oil in before you start the engine - this delay allows the oil to fully reach the pan due to the baffles in it.

I also pre-fill the oil filter before installing it.

Good luck.
I agree thats good advice about the pre-fill. Most guys over look it.
robs817_c5
 
Joined
Mar 18, 2004
Messages
51
Location
Madison, CT
Corvette
2010 Callaway Grand Sport
I've been changing my own oil on my 03 coupe since new and have it down to a science.
Using a low profile jack I lift the car from the front drivers side lift point. I place a jack stand under the front suspension, in case jack fails while I'm under the car.
Remove drain plug and start draining the oil. I remove the jack stand and lower the car down to level leaving the jack engaged.
I wait usually around 15 minutes for the oil to completely drain.
Then I jack up the car replace the jack stand and replace the drain plug. When replacing the filter I agree with the above reply's to fill it with fresh oil before replacing.
I then remove the jack stand, lower the car and fill with EXACTLY 6 1/2 quarts of Mobil 1 (remember to keep track of the oil that went into the filter, usually around a 1/4 quart).
This sounds time consuming but it really only takes around 30-40 minutes.
I also switched over to 10w-40 which is allowed by the owners manual for warmer temperatures which is when I use my Vette.

Hope this helps.

RocketJ
 

5thgeneration

Well-known member
Joined
May 26, 2003
Messages
56
Location
Northern Ohio
This has always worked for me. :thumb
5thgeneration-albums-2002-electron-blue-picture916-oil-change-time-every-year-just-before-hibernation.jpg
 

zagger

Well-known member
Joined
Apr 22, 2006
Messages
468
Location
San Diego
Corvette
99 C5 Convertible
I love the little pre ramp ramp (that didn't sound wright), makes ordinary ramps work with a Corvette. Great idea, can you post some dimensions or how you made them, I'm sure lots of members who work on their cars would like to make them :thumb:thumb:thumb.
 

Mr. Lucky

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Joined
Aug 30, 2004
Messages
405
Location
Orange, CA
Corvette
2004 MY stroker Coupe

That is not safe. :eek

Once you lift the rear wheels off the ground, the only thing keeping your car from rolling is the little lip at the end of those ramps. Setting the parking brake or leaving it in gear only locks the rear wheels.

Since it appears you have a sloping driveway, a much safer (and easier) method would be to back into the garage and then drive forward onto the ramps. Placed correctly, the rear wheels will rest on the high spot and the front will be elevated on the ramps. Since the ramps are on the low side of the drive, the net result is that the car ends up level... with all four wheels firmly planted.
 

Junkman2008

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Joined
Aug 11, 2007
Messages
560
Location
Kentucky
Corvette
2001 Navy Blue Metallic Coupe
That is not safe. :eek

Once you lift the rear wheels off the ground, the only thing keeping your car from rolling is the little lip at the end of those ramps. Setting the parking brake or leaving it in gear only locks the rear wheels.

Since it appears you have a sloping driveway, a much safer (and easier) method would be to back into the garage and then drive forward onto the ramps. Placed correctly, the rear wheels will rest on the high spot and the front will be elevated on the ramps. Since the ramps are on the low side of the drive, the net result is that the car ends up level... with all four wheels firmly planted.

Good observation.
 

Deluxe

Active member
Joined
Apr 3, 2003
Messages
26
Location
Jacksonville, FL
Corvette
2003 AE Coupe
2 things:

The "special procedure" may be a reference to resetting the oil life monitor. Turn the key on run but don't start the engine, then depress the accelerator peddle 4 times to reset the monitor. Alternately, scroll to the oil life display and hold the reset until it goes to 100%.

A caution about tipping the car a little to run all the oil out of that flat oil pan. One time I did that, then leveled the car back out with the drain plug still out. Good thing I still had the catch pan there because nearly another pint or so of dirty oil proceeded to drain. I presume there are some areas in the upper engine that like level to drain, not tipped up. I always go with level and give it time.

Safety tip: if you use rhino ramps to change your oil, back the real wheels up on those and jack the front (use jack stands once up). The reason; you can set the brake-gears-park and totally eliminate any possibility the car could roll. Much harder to do with the front wheels. Once the rear wheels are off the ground, you're at the mercy of physics that may exceed your preparations!
 

Deluxe

Active member
Joined
Apr 3, 2003
Messages
26
Location
Jacksonville, FL
Corvette
2003 AE Coupe
One other note about using Rhino Ramps. The front wheels will often slide the ramps forward, especially if your car is an automatic. The reason is because you are riding the brakes. Some of the remedies above work fine, but if you trust your parking brake to get halfway up the ramps... they won't slip once you get some weight on them. Guys with a clutch seldom have this problem.
 

zagger

Well-known member
Joined
Apr 22, 2006
Messages
468
Location
San Diego
Corvette
99 C5 Convertible
Thanks for the picture Warren, I really like your idea especially the pin which will prevent the smaller pre ramp from sliding out.

OK guys give the man some slack, if you look at the picture you can see jack stands under rear cradle. E-brake is better than nothing but it's a most under maintained part of the car. When was the last time anyone checked their linkage or the components. They can fail without notice, the jack stand is the safest way to keep any car from failing on you.
 
C

Cessna 182

Guest
Torqueing the oil drain plug

I can't figure out how to torque the oil drain plug. The frame sets so close to the plug I cannot get a socket and torque wrench on the oil drain bolt. The oil pan has a warning cast in to see owners manuel for specs.

I just use a short end wrench and try to tighen enought to stay in plach and not enought to damage the aluminum threads in the oil pan.

Anyone have a solution to this?
Jim ;shrug
 

Junkman2008

Well-known member
Joined
Aug 11, 2007
Messages
560
Location
Kentucky
Corvette
2001 Navy Blue Metallic Coupe
Here's what I did. I placed my torque wrench on a loose bolt that I could easily get to at set it for the torque required. I then cranked on it a couple of time just to get a feel for how tight I needed to get the drain bolt. I then took a wrench of equal weight (of my torque wrench) that would fit on the drain bolt. I tightened it down until it felt the same as that practice bolt.

Hey, it ain't exact but it was good enough for government work.

Here's an interesting solution that would work...

2197-ed-korns-torque-extension.jpg
 

vett boy

Well-known member
Joined
Feb 10, 2005
Messages
3,060
Location
Florida sometimes Maine
Corvette
2008 vert 6M silver
All great advice :D But remember it's only a Chevrolet.I don't do anymore "special " things than when I change the oil in my wifes Ford Escape .Except resets.
 

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