Fluid · Coolant
Coolant
for 1955 GMC Suburban 248 cu in (4.1L) GMC inline-6 · RWD
Fluid Type
Ethylene glycol green 50/50
Capacity
15qt
14.19 L
Drain & Refill
13 qt
12.3 L
Change Interval
24,000 mi
38,616 km
Data quality
Calibrated
Platform-calibrated book-style value. Verification program ongoing.
Notes
Larger inline-6 engine cooling system. Use vintage-compatible coolant without modern inhibitors that can harm brass/copper.