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Automatic car wash

jimwoe

New member
6
5
3
Buick Ownership
2020 Regal GS
I am the owner of a 2020 GS and the owners manual states to keep high pressure water off the transfer case. Does this include an automatic car wash underbelly spray? At what pressure is it considered "high". Thanks much for your replies.
 

Hunter Mike

Well-known member
418
271
63
America’s Dairyland
Buick Ownership
Dark Moon 19 Buick Opel Vauxhall Insignia Country Tourer Regal TourX Essence Estate Avant Wagon
I wouldn’t consider the under spray’high’ pressure. I believe they don’t want you using a 3k psi pressure washer directly toward the seals...same as cleaning underhood.
 

jimwoe

New member
6
5
3
Buick Ownership
2020 Regal GS
I wouldn’t consider the under spray’high’ pressure. I believe they don’t want you using a 3k psi pressure washer directly toward the seals...same as cleaning underhood.
Thanks Hunter Mike. I run my 4WD trucks through and never had an issue.
 

Jack GS

SUPPORTING MEMBER
534
651
93
Metro Detroit
Buick Ownership
2019 Regal GS
FWIW, I have run my 2019 GS through the touchless washes with underbody sprays since day one and have not had any issues. Granted, I haven't crawled underneath to check things out.
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jimwoe

New member
6
5
3
Buick Ownership
2020 Regal GS
FWIW, I have run my 2019 GS through the touchless washes with underbody sprays since day one and have not had any issues. Granted, I haven't crawled underneath to check things out.
With winter coming and no place to wash inside was somewhat concerned about it. Thanks Jack GS.
 
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