No, Mr. Lemmywinks, No!!!
Join Date: Jun 2005
Location: Harriman, TN
The activation energy to eat the aluminum is ~.4; as log as you don't see that, you're ok.
That said, I'd flush it, and replace the coolant. It's only going to get worse.
Alkaline is actually slightly worse for aluminum; but don't add anything to match the pH, as that would be worse.
Adding a zinc anode is as far as I would go.
Red '96 Cougar XR-7 240k mi. '02 4R70W, PST DS : '03 PI engine, 04 maf, 24lb injectors, 2.5" exhaust, '02 4r70w + Jmod, DirtyD0g TC + cooler + 3/8" lines, 255 walbro fp. Alpine system.
Black '96 Cougar XR-7 (Lazarus) 210k mi PI Intake, '02 4R70W, Jmod, PST DS, GrogTune, Konis, Mark LCA+Poly, racecougar Custom Engine Chain, and JL and racecougar Bracing.
Black '97 Tbird Limited Edition, '02 4R70W, 255 walbro, PST DS, PBR Brakes&SS lines, Toicko Blues & Springs, GrogTune.
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