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Coolant Specifications: Maintenance

Inspect cooling system every 12 months or 15,000 miles. Drain and flush cooling system every 24 months or 30,000 miles. Maintain coolant level with 50% mixture of ethylene glycol based anti-freeze and water.

COOLANT CAPACITY

Application Quarts (L)
2.5L 4-Cyl.
Astro/Safari (1) 10 (9.5)
S10/15 12 (11)
2.8L V6 10.5 (10)
4.3L V6
Astro/Safari (1) 13.5 (13)
"C" & "K" Series 1 (10.5)
"G" Series (1) 11 (10.5)
4.8L 6-Cyl.
"C" & "K" Series
W/ Air Conditioning 16 (15)
W/O Air Conditioning 15.5 (14.5)
"P" Series 14 (13)
5.0L & 5.7L V8
"C" & "K" Series
W/Air Conditioning (1) 18 (17)
W/O Air Conditioning (1) 17.5 (16.5)
"G" Series (1) 17 (16)
"P" Series 15.5 (14.5)
6.2L Diesel
"C" & "K" Series (1) 25 (23.5)
"G" Series
VIN C (1) 24 (23)
VIN J (1) 26 (24.5)
"P" Series
Motor Home 25 (23.5)
All Others 25 (23.5)
7.4L V8
"C" & "K" Series
W/ Air Conditioning (1) 24.5 (23)
W/O Air Conditioning (1) 23 (22)
"P" Series 22.5 (21)
(1) On Astro/Safari, "C" and "K" Series Blazer and Suburban, and "G" Series Van models, add 2.85 qts. (2.7L) for auxiliary rear heater.