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Thread: gasoline octane for 99 Z28
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03-10-2009, 06:45 PM #1
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- Mar 2009
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black- 1999 Z28
gasoline octane for 99 Z28
Just bought a 99 Z28 with 42,000 miles on it. The previous owner said he used premium gas in the car. I had a 93 Z28 and remember using regular. Any advice on whether regular is OK or premium? One guy told me he mixes half and half. I buy the gas at a place where they do not have plus, only reg and premium. I have no problem buying either grad but wanted some opinions on how the car will perform, mileage etc. Thanks.
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03-10-2009, 06:50 PM #2
92 and up is what it's rated for. Keep the good fuel in it, and you might get better fuel mileage !
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03-10-2009, 06:51 PM #3
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03-10-2009, 06:52 PM #4
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03-10-2009, 06:56 PM #5
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- Mar 2009
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- Maryland
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black- 1999 Z28
premium or regular
OK guys, thanks. The car runs great so I will keep running the premium in it. Just heard differing opinions so though I would check. Have not had a Camaro since 93 so I doubt it is worth experimenting with the different grades of gas. Easier to stick with the recommended octane for as long as I own the car. Its a bit louder than the old LT1 models but just as fast, although I drive like an old lady now.
Thanks again.
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03-10-2009, 06:59 PM #6
Cool !!! The stock compression is around 10:1 on it.
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03-10-2009, 07:06 PM #7
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- Maryland
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black- 1999 Z28
I raised my profile a bit with this ride. The old Camaros were fun on a controlled track> We ran Goodyear Eagle RSAs which are not a sticky tire. This one has Kumho tires and a 6 speed. T tops even so its not a track item. I won't be doing any J turns in it like in the old one. Had to disable the ABS for that and its a bit rough on the undercarriage anyway, even with the automatic trans that the 93 had. Just a fun ride to get me to the commuter train every day, and the roar around the exit ramp off the highway right at the car's (driver's) limit. But everyone with a supposed hot ride takes a look when they go by. I like that.
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08-04-2009, 05:26 PM #8
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- Mar 2009
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- Maryland
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black- 1999 Z28
Whine near rear of car. I notice that my 99 Z28 has a noticeable whine sound almost all the time at any speed. Seems to be coming from the rear of the car. It runs fine, but any ideas what that whining sound is. Might be some sound coming from the tranny.
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08-04-2009, 05:59 PM #9
The torque arm bolts directly to the rear and channels the rear noises up to the transmision mount, I have the X-treme duty torque arm, that bolts into the crossmember and it really amplifies the whine noise... I don't recall ever having a quiet rear in my car... Even my newer moser 12 bolt whines... LOL !!!
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08-05-2009, 08:45 AM #10
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- Nov 2008
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- Pond Hill
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- 7
Yellow- 2002 Collector's Ed. T/A
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08-06-2009, 04:18 AM #11
- Join Date
- Mar 2009
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- Maryland
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black- 1999 Z28
stock gear ratio
I never asked the guy who I bought the car from about this, but he told me the car was totally stock, so I assume its the standard 6 speed from the factory. I can live with the whine, I guess. Its noticeable sometimes but not all. As long as it purrs along like it does, I am OK with it. I do get tired of every hot Mustang pulling up and wanting to challenge me. I used to race the Z28s but now drive like an old lady so I wave them off most times. Not all though.
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08-06-2009, 04:32 AM #12
Since I installed wheelie wheels & two 15lb NOS bottles in the back window, the mustangs leave me alone...
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08-07-2009, 04:01 AM #13
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- Mar 2009
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- Maryland
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black- 1999 Z28
nitro
That's great stuff for the Mustangs, and sounds like an intimidating set up. Every now and then I give in and give it a go, especially if the road is curvy, since multi-skills type driving is easy for these Camaros to handle, but difficult for someone not experienced in this type of driving, which is what most of these guys seem to be. ABS took some of the challenge out of the braking part, but still on one occasion I saw, in my rear view mirror, the other guy lose the curve and enter the corn field. No real damage but these Kumho tires are a lot stickier on curves than the Goodyear Eagle RSA's we used to run. Thanks.
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