2 questions PLZ

[99WhItEGaGt]

ok 1st question is when i bought the car it had the green antifreeze in it and then one of my friends pointed out to me that it needs the dexacool (the red stuff) he said if i leave the green in there it will coroad the cooling system so i am just wondering if thats bs or true.. i have found some yellow crud on the collant reservour cover but dont know if its corrosion or not.

2nd i just modified my taillights ok and i put in the APC 3157 led bulbs for my blinkers in the back and now they blink really fast since i have done that and my "sevice vehicle soon" light is on most of the time i just shrug those off but was just wondering if there is something i can do to get rid of that light. personaly i kinda like them flashing rapidly like that.
Thanks,
Chad

[Chain]

Well I have used the green stuff all my life and never had any trouble with it. I am sure dexacool it better stuff. The green it good just use it 50 50 mix and keep it check for temp strength.

As for the other question I have not a clue.

[Gimli]

COOLANT:
Late GM engines are designed around Dexcool as coolant. Dexcool is different from regular glycol coolant (green stuff) and GM says that the green stuff WILL wear out the parts in the cooling system faster. Some people still use the green stuff without IMMEDIATE problems but it all comes down to how comfortable you are running the car with something it's not designed for.

LED:
Oh well, I was gonna tell you to use the search button but it seems like the old thread was deleted :)

The reason your flashers blink fast and you get an SVS light is because the BCM thinks your bulbs are burnt. That's because LEDs use a lot less current than regular bulbs.

To remedy that you need to put some load on your blinker wiring. To do that you'll need resistors. I'll just cover every possible situation here so that I don't have to post about this again for a while :)

FIRST: The flasher power wire is Dark blue on the Passenger side and Light blue/black on the driver side, both front and rear.

Replacing FRONT flashers with LED:
You will need two 6-8 ohm resistors, preferably 10 watt or higher. You need to splice the resistor on the blinker wiring harness between the blue wire (flasher power) and the black wire (ground).

Replacing BACK flashers with LED:
Because there are two flasher bulbs on the back wiring harness you need a different load resistor. For the back you need two 3-4 ohm resistor, 10 watt or higher. Again, you splice between blue wire and black wire.

Now when you install the resistor make sure they're in a space where they won't vibrate against something hard (they may break) and make sure they're not too close to something flammable (they get pretty hot).

You DO NOT need load equalizers (resistors) to use LEDs for brake lights. You might need to modify one of the bulbs to use them as brake lights though, depending on the brand. If they don't all light up when you apply the brakes let me know, Ill let you know what to do.

You can find the appropriate resistors at any GOOD electronics store (Radio Shack not being a good one most of the time).

[99WhItEGaGt]

hey thanx yeah i was planning on getting a coolant flush within about a week here and as far as them blinking fast i kinda like that. but lastnight i descoverd another problem my interior lights (gauges, shifter, and hvac lights) umm yeah dont light my drl's still work and i checked the fuses there good i am thinking thats why the service vehicle soon light is on but idk i am going to piss the 50$ aways to have a code reader hooked up to it and mabey they can tell me. but yeah if you have any sugestions thanx.

[rixGAphx]

The interior lights aren't just turned way down at the dimmer, are they?

[99WhItEGaGt]

yeah i tried adjusting the brightness it is all the way up so idk whats wrong