Join Date: Aug 2008
Location: Lowell NC
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it depends on the climate you're in.
A friend here in NC "winters" his Scat Pack in South FL and its parked outside under a car cover.
- the aluminum engine front cover, water pump are oxidized.
My late father lived in SE GA (near the FL border) and anything aluminum really gets cosion / oxidation
I've noticed this is areas where roads are salted.
I lived in (very rainy) Oregon and my vehicles get driven year 'round - no oxidation. Even my now 18 year old 'Benz (all AL engine and magnesium cast parts) doesn't have oxidation.
If you're also in a coastal climate and parked outside - its likely to happen with all the ambient moisture in the air and the salt.
If SF, if you lived near the beaches - you need to use brass or stainless fasteners on everything on the exterior of a house. Otherwise, you'd see rust streaks running down light fixtures, siding, fences.
-eventually fasteners such as screws and bolts would shear off if you had to remove them to service something on the exterior.
Asian makes of cars that weren't garaged - you'd see the weak spots where the salt air / fog would start rust to develop.
2016 392 Hemi Scat Pack Shaker 23Y pkg (M6) ordered 8/28/15, born 10/23/15, home 11/20/15
Torred / Black/ Ruby Red leather
2009 R/T 27J pkg (M6) ordered 7/17/08, born 10/23/08, home 11/13/08
Hemi Orange / Dark Slate/Light Slate Gray leather