Coach62

Can I just suck a full quart from the reservoir to replace it with racing oil? I have a large turkey baster, would that work if I heat the oil up?

Car already had a new oil change with Mobil 1 when I picked it up last saturday. I want to add at least one quart of Amsoil racing oil (for the ZPPD) but this will overfill it.

How much oil does the reservoir hold?

Thanks!!

Unreal

Open a drain plug on the bottom until a quart comes out.

3 Z06ZR1

lemans

Drain it!!!

double06

inexpensive and can be used for a variety of things.

lebvette

I thought the drain on the actual oil pan only held about a quart.

JoesC5

The oil plug next to the oil filter drains the oil pan, and will drain out approximately a quart.

The oil plug at the front of the oil pan drains the reservoir. Don't remove that plug or you will find yourself with somewhere between 7 and 9 1/2 quarts(model year dependent) draining out.

C66 Racing

I got a suction pump from a local auto parts store for this type of thing - but agree that in this case you can drain it as well.

pkincy

Zppd??

Coach62

Sorry, ZDDP, not zppd. Do a search on it, there's tons of info. It replaces the zinc and such that have been removed by the tree huggers.

Coach62

I might do that then, I was just trying to avoid the mess of draining one quart of oil from under the car.

So does the upper reservoir hold about a quart????

wolf8218

Uh, there's a plate preventing you from getting too deep in the tank, and if you're planning on opening it, might as well just drain it.

C66 Racing

Here's a summary for those interested.

Phosphorus, along with zinc, in a compound called ZDDP, or or zinc dialkyl dithio phosphate, forms an oil's primary anti-wear additive. Unfortunately, phosphorus slowly poisons the cats and prevents the catalytic exchange that allows them to function properly. To ensure auto companies could meet the EPA's 100k+ emissions requirements, the API has slowly been dropping the limit on phosphorus.

From 94-97, the API SH spec allowed up to 1200 ppm phosphorus for 5w30 and 10w30 and didn't address other 30 grade viscosity like 0w30. In 97, API SJ dropped the limit to 1000 ppm, but still did not address 0w30. In 01, API SL kept 1000 ppm phosphorus, but added 0w30 to the spec. In 04, API SM further dropped the limit to 800 ppm, but for the first time set a floor at 600 ppm and advertised that oil's were better. Essentially they were capping how much phosphorus the better oils could have and mandating the lowest amount the cheapest oils must have. The current API SN spec still has the band 600-800 ppm phosphorus.

So, any oil labeled to meet the current API SN spec will be limited to 800 ppm max phosphorus. This impacts how well it will be able to perform in anti-wear, such as might be seen in your bearings under heavy load.

Specialty oils that do not comply with the current API SN specs can bypass this limit of 800 ppm phosphorus.

AMSOIL has many (and has many that comply with API SN specs as well).

Here is the racing oil I use and is mentioned above by Coach62:
AMSOIL Dominator Synthetic 10w30 Racing Motor Oil (Product Code RD30QT)
(zinc – 1575 ppm, phosphorus 1474 ppm)

Here is one more suited for street use:
AMSOIL Z-ROD 10w30 Synthetic Motor Oil (Product Code ZRTQT)
(zinc – 1440 ppm, phosphorus 1320 ppm)

More than happy to get AMSOIL products for forum members at dealer wholesale pricing, about 25% below retail, via the AMSOIL Preferred Customer Program. Drop me a PM if interested.

HOXXOH

Best that you do the math before any change to calculate the level of zinc/phosphorus that you desire. A 2-3% change is not worth the effort, but a 12-15% might be. It'll mostly depend on how you use the car before your next full change and what levels you intend to arrive at then.

2k Cobra

That's when you need to use the restroom.

Coach62

Good point, it was also to slightly raise viscosity, but also to improve the overall oil quality. I already added the Rislone ZDDP additive.

Coach62

Brad,

I bought a trans / differential fluid change kit for my C5 Z from you a while back and never used it. Are the same fluids good for my C6 Z? Also, I'll need a price for a case or 2 of the motor oil you recommended. Oddly enough, the only place I know of that I can get it around here is Ace Hardware LOL...

AtomicZ_Eric

Dealer overfilled my oil by half a quart when I first received Z and didn't have tools to change oil myself. I bought a flavor injector and flexible fish tank air line at Target. Took some time, but worked perfectly. Cleaned out the flavor injector syringe, use it for ranger method clutch fluid dilution. Good to go.

jedblanks

Harbor freight fluid transfer pump

Coach62

Thanks to both of you. Where did you suck the oil from?