2026-07-21 · 4 min read
Toyota Innova Oil Leak — Common Sources & Repair
Innova diesel common oil leaks: turbo oil feed/return lines, valve cover gasket, crankshaft rear seal. Diesel oil leaks worsen faster under heat. Costs.
Innova Oil Leak — Diesel-Specific Sources
Innova diesel common oil leak sources: turbo oil feed line banjo bolt seal (O-ring), turbo oil return line gasket, valve cover gasket, crankshaft rear seal. The turbo-related leaks are more common on the diesel than on petrol models. Oil leaks on a diesel turbo engine are more serious — oil on hot turbo components can smoke or create fire risk. Address any oil leak promptly. Valve cover gasket: RM 150–250. Turbo oil line seal: RM 100–200. Crankshaft rear seal: RM 400–600 (labour-intensive).