Originally Posted By: dparm
Originally Posted By: IndyIan
Originally Posted By: dparm
Originally Posted By: Mitch Alsup
And you are worried about another $100 in oil !?!
It's way more than $100. The sump is gigantic and you have to replace it with 5w30 once you are done on the track, so you are effectively paying for two full oil changes. Also, there is the simple logistical problem of going to the dealer twice.
I agree that it's "cheap insurance".
Would getting a drill powered extractor, a 20l pail, and then save it work with a dry sump? Should be pretty fast and painless if it works.
Not sure. It's a dry sump system. The owner's manual has a very rudimentary overview of how to do it:
1. Remove the two drain plugs. One is for the external oil tank (via oil transfer supply line) and the other is for the crankcase sump.
2. Remove the filter
3. Reinstall drain plugs
4. Replace filter.
5. Add oil.
6. Run the engine for 15 seconds, turn it off, and check the level.
Also, that's a gray area with the warranty: GM could say "how do we know you did that every time"?
Maybe just find out who the vette warranty manager is for your area and ask them first. I guess if nothing else you'll get a sense if he's an enthusiast or not.
Seems a little stupid that they go to the trouble of a dry sump for tracking the car, and then spec an oil that you have change out to run on the track... They should pay some GM engineer some overtime to figure out if 15w50 wrecks the cats or not and be done with it.
I suspect your not going to burn enough oil or do enough road miles to wreck the cats in any case, as they must get lots of heat and rich fuel mixture going through them on a track day. Being of low moral character, I'd just get the 5w30 changes at the dealer on time and then change it to whatever you want to run at the track until you get your next free oil change, no need to mention anything about tracking it all...