Asking for some helpful input. I have a 1992 Firebird Convertible with a stock 305. Its getting up there in miles so I would like to do some preventitive maintenance. What would you recommend be changed out? Im not looking for more power, just trying to avoid issues down the road. Thanks in advance for the information.

 

What kind of mileage is on the engine? Mileage on the chassis?

What's been done maintenance-wise recently?

Has any kind of regular maintenance been followed?

 

Its at roughly 120xxx miles for both the engine and chassis.

The oil was changed before I put it up for the winter in October.
I had pads and rotors about 10k miles ago when the transmission was replaced.
About 5k miles ago it had brake lines replaced during annual inspection

As for routine maintenance I've kept the oil changes regular and always made sure the fluids are at the proper levels but not much more than that.

 

I would just do:

1. Plugs
2. Air and fuel filters.
3. PCV valve.

Optional:

1. Cap and Rotor.
2. Plug wires.
3. Dump some Gumout Regane or Redline SI-1 in the tank, fill it and run the tank almost empty just before you're ready to change the oil again. Some say these things don't do anything; some say they do keep things clear.

I use Regane in my GMC with CPI because it's a royal pain to replace the injectors when they clog (and they do).

https://gumout.com/fuel-additives/re...ystem-cleaner/

https://www.redlineoil.com/product.aspx?pid=80&pcid=12

 

What Paulo said, plus:


Tear down the injectors, soak em in lacquer thinner overnight, reassemble with new paper & rubber

Chassis lube

Rear end grease change

Brake fluid change (if that wasn't done COMPLETELY as part of the other brake work... one reason I do all of my own that sort of thing)

New poly sway bar bushings & end links

Remove the radiator clamp piece on top of it and wash all the leaves, dead bugs & rodents, etc. out from between the radiator and the AC condenser

I'm not a big fan of the fuel additive type stuff; too expensive and not near as effective as the simplest common-sense-est type of thing: run it as far out of gas as you dare, pour in a gallon of lacquer thinner, run it for 5 or 10 minutes to make sure it's in every part of the fuel system, park it overnight, fill it up with gas in the morning. Do this before cleaning the injectors, as it is likely to wash various gunk into them.


All of these things are cheeeeep, eeeeeeezy, and quick; and make a MASSIVE improvement in function, enjoyment, cost of operation, and/or longevity.

 

Okay I will look into all of that, it seems like some relatively inexpensive maintenance to do. I appreciate all the input, if you think of anything else feel free to mention it. Maybe some stuff for a little further down the road.