1997-2008 L67/L32 3800 SC Basic Upgrades

  • Spark Plugs – Autolite® 605 spark plugs (one heat range colder than stock) We recommend reducing the spark plug gap to .055″
  • Plug Wires – ACDelco 9746BB Professional Spark Plug Wire Set
  • Air Filter – K&N Drop in Air Filter. Use the factory Air box which already introduces fresh air from outside the engine bay. Choose the proper one for your vehicle make, model and year.
  • Belts – We recommend Gates or Goodyear Gaterback Belts which can be purchased from Napa or other local retailers.
  • Engine Oil – Synthetic oil, Mobile One is preferred as an entry level upgrade as it is an exceptionally clean oil with minimum buildup. AmsOil Signature and Royal Purple are top recommendations.
  • Oil Filter – The factory oil filter is a bit small; you can use the ACDelco PF52 as an OEM upgrade or the WIX 51036 or the Napa gold, which is the same exact filter made by WIX, NAPA 1036

1997-2008 L36/L26 3800 NA Basic Upgrades

  • Spark Plugs – Autolite XP Iridium Spark Plug XP606, these plugs are an upgrade over the factory Copper and platinum plugs.
  • Plug Wires – ACDelco 9746BB Professional Spark Plug Wire Set
  • Air Filter – K&N Drop in Air Filter. Use the factory Air box which already introduces fresh air from ouside the engine bay. Choose the proper one for your vehicle make, model and year.
  • Belts – We recommend Gates or Goodyear Gaterback Belts which can be purchased from Napa or other local retailers.
  • Engine Oil – Synthetic oil, Mobile One is preferred as an entry level upgrade as it is an exceptionally clean oil with minimum buildup. AmsOil Signature and Royal Purple are top recommendations.
  • Oil Filter – The factory oil filter is a bit small; you can use the ACDelco PF52 as an OEM upgrade or the WIX 51036 or the Napa gold which is the same exact filter made by WIX, NAPA 1036

Brakes

Upgrading from Dot 3 to Dot 4 – What is the difference?

Their primary differences are their wet & dry boiling points and their composition.

Dry Boiling PointWet Boiling PointComposition
DOT 3205°C/401°F140°C/284°FGlycol Ether
DOT 4230°C/446°F155°C/311°FGlycol Ether/Borate Ester
DOT 5260°C/500°F180°C/356°F

Silicone

Check out this article by AmsOil to read more on the subject to see if DOT4 is the right upgrade for you.

DOT 3 and DOT 4 Brake Fluid: What’s the Difference? – AMSOIL Blog