Ha my bad

BTW I did go out and pull the RPO's from the glove box unfortunately because the badge is in somewhat need of repair I didn't get them all So tomorrow I am going to local dealer and get the sheet. However, in direct response to you Q it has RPO G90 3.15 gearing. I was looking for the M30 code which would make it a 4L60-E. Since I do have an AT it could only be that type but will wait to confirm when I get the sheet.

 

Curious....why would one need to change out PS fluid at EVERY oil change?

 

 

Power steering fluid is not filtered in most applications including the C5. Power steering fluid runs hot in the C5 and for that reason has its own finned cooler. PS fluid accumulates wear products and dirt, gets thickened because petroleum based fluids burn and evaporate faster than full synthetic. Syringing it out and replacing at every oil change with full synthetic keeps it clear and removes contaminants, extending the life of the steering system.

 

So Cali is starting to get that good ole "driving weather" this week so I am also getting ready to change all the fluids so I have a starting point. I did the oil change recently so I still need to do 1. radiator flush 2. PS change fluid or flush? 3. Automatic Tranny fluid change or flush? 4. Brake fluid change 5. Diff change/flush? Am I missing anything? For the fluids or additives I am going to stick with the Synthetic style as I have been reading here on this forum that our cars like the Syn stuff. I picked up a bottle of Red Line Complete Fuel System Cleaner SI-1 and will pour that into the tank tomorrow or when I next get her filled. I might go all in for the Red Line brand of PS fluid, Waterwetter, and their ATF but I don't have a good understanding of what the benefits might be if any. As for the oil I will stick with M1 5/30 or 5/40 and probably the high mileage brand. For the diff it will be handled when I get a gear change and that too may end up being the RL product.

I guess I could go with a standard synthetic brand of fluids like I do in my other vehicles but I think I may do a change up for the C5 don't know yet just thinking out loud. So any recs from this forum to point me in the right direction would be appreciated. Thanks and Cheers!!!

 

My opinion, Red Line is top shelf. Amsoil has a great following, so does Royal Purple, and Mobile 1.

Oil is a huge topic of debate on every forum, so it helps to do your own research. Read their websites , google comparisons, look for YouTube videos that may discuss and/or test the products.

 

Thanks Bill for your perspective it's appreciated. Cheers!!!

 

I would change trans fluid and filter. And do it again after a thousand miles if the drained fluid is burned or there is a lot of clutch silt in the pan. I have used Red Line D4 full synthetic fluid for 12 years, 45,000 miles in my ownership (118,000 miles on the car), 1.400 miles and 23 days on race tracks, 6,000 full throttle upshifts from 2nd to 3rd on my A4.

And offer the following:

Changing the fluid and filter on a C5 A4 is fairly easy, but there are specific procedures to insure that the fluid level is correct after the change:

After replacing the filter and bolting the pan back up, fill with new fluid to the drain/ check level plug hole. Then start the engine and leave it running with the transmission in PARK.

Immediately add fluid through the drain/ check level plug hole until fluid flows out of the plug hole. It may take as much as another couple of quarts.

With your foot holding the brakes, cycle the transmission through all the gears, then back to PARK.

Go back underneath and make sure that fluid is still dribbling out of the fill/ check level plug hole. You might have to add some.

With the engine still running and the transmission in PARK, monitor transmission temperature on the DIC. When transmission temperature rises to 122 F, put the plug in the fill/ Check level hole. Keep a pan under the hole, fluid will dribble out as the transmission temperature rises.

Do NOT shut the engine down until the plug is in the fill/ check level hole. If you do, HOT fluid will gush out and the transmission will be low on fluid.

I recommend full synthetic fluid such as Red LIne D4.

Keep in mind that the above procedure drains about half the fluid in the A4. The other half is in the torque converter and other works.

You will need a small hand pump to pump the fluid into the fill/ check level hole.

If you are going to track the car, check post #9 in the thread below:
https://www.corvetteforum.com/forums...track-car.html

 

Thanks again Jim. I have an auto tranny but I know the procedure is most likely the same as I read elsewhere. Cheers!!!

 

The procedure given by @Jim993 is for the automatic transmission.

 

?????

 

The CARB has a list of what aftermarket equipment you can use broken down by type of equipment. There are some headers on the approved list. Any aftermarket gear will have an EO number (an Executive Order overriding the CARB restriction).
Database: Aftermarket Parts Database of Executive Orders (ca.gov)

 

The 102 LSXR is carb legit