jwaked

I don’t think any ZR1 owner reaches the miles before the time, I might be wrong . Well after hours of reading the manual this is what I got so far, don’t kill me if I made a mistake

Oil and filter once a year.
Engine and cabin filter every 2 years
Clutch hydraulic fluid 2 years
Engine cooling and supercharger cooling 5 years
Engine drive belts 10 years

Now these I cannot find

brake fluid
Power steering fluid
Rear axle oil
Spark plugs and wires
Transmission fluid

anything else I missed ?
thanks
Jay

Apocolipse

Change all of that except the spark plugs. They dont age.

jwaked

good point, just wanted to see after that how long each. Had no idea Plugs don´t age, car has 9 years and 16,500 miles

9sec

bought mine w/ 14k miles on it. trailered home and got misfire copies. changed plugs all is well. plugs may age but they do fail. for 30$ change them

jwaked

how about wires?

Unreal

For $50, might as well replace with new OEM ones. But typically they don't age out, and if they do, you just get a misfire. Not a bad idea to just do them with plugs to be safe.

Texasthunder

Check date code on the tires.

jwaked

will do tonight, learned that in Michelin is a 4 digit code, first 2 numbers are the week and last 2 are the year of production.

captain vette

same boat here, 2012 ZR1 last fall did changed diff, trans, clutch, and engine oils. i already have new plugs and wires on the shelve engine coolant is scheduled for spring. the only thing that scared me is SC coolant flush looks like a real PITA. air filter and cabin filter are new also.

jwaked

Anyone have the OEM spark plug wires part No? On ebay there are 9748 UU, 9748 GG, 9748 HH, WTF??

captain vette

this is what a lot of ZR1 owners buy, included me.

jwaked

Thanks man, the heat socks I see in your other post came on that size already or you bought a roll and cut them?

captain vette

i bought those socks on EBay for cheap, around $20. they come already cut.

Spaceme1117

Brake fluid should be changed at least once a year. It's not that it goes bad, but it absorbs moisture which dilutes it decreasing the boiling point.

Power steering fluid I would think 50K miles.

Diff fluid, I think 50K is fine. 25K if you are worried about it.

Trans fluid if an auto I go 50K. Manual trans fluid change can depend on how the shifter feels. Some trans fluids loose their properties after only a few thousand miles.

Clutch fluid should be changed pretty often at least 3 or 4 times a year. This will keep the master and slave healthy.

Engine drive belts, I wouldn't let it go to 10 years. They aren't expensive so every couple of years is what I would do.

jwaked

That’s what I’m trying to find out like that brake fluid and clutch fluid you mentioned time but on the others you mentioned miles and it would probably go more than 20 years and wouldn’t reach that mileage so we’re trying to find out all the maintenance things but timewise.
thanks

jwaked

just did. They were all made in mid 2015. What do you guys thinks. Plenty of meat left one them. No cracks.

Too-Fast

Six years is generally the suggested limit by tire manufacturers. The Texas Mile will not allow tires older than 7 years on cars running that event. There have been some auto pundits that advocate for longer terms, but there is much debate about safe use longer than 6 years, regardless of tread depth.

ZR1Cat

Geez, I forgot about the SC coolant replacement. I need to get that accomplished on my 2012 as well. I guess I better start looking for YouTube videos or a write up on doing that job. Do you or anyone else have a favorite or recommended link for SC coolant replacement?

captain vette

i did'nt found anything so far. Seems like guys do not care about it.

9sec

oem expansion tank has a drain plug. drain it with the screw out of the fill point on the hose. once its drained you fill thru the fill point ( this will take a long time) and turn on the I/c pump with hp tuners or gm tech 2 . with the pump running open the bleeders and allow air to escape until the system is full.