10tf29c¶

1 excerpts.

Reddit thread: Adding oil to my smart fortwo¶

reddit.com/r/Cartalk/comments/10tf29c · p. 1 · Applies to: 450

Source: r/Cartalk (score 1, 11 comments) Topic: excessive oil consumption, cracked cylinder wall suspected Models discussed: 450 Solution status: unclear

Problem: 2001 Smart Fortwo 450 with 148,000 km consuming excessive oil (~1 liter per 600-700 km) with no visible leaks. Technician suspects cracked cylinder wall. Vehicle shakes, with reduced shaking after spark plug replacement.

Solution: Technician recommended full engine repair rather than used engine replacement. Top comments suggest the issue is likely turbo seals burning oil (not fixable by additive) rather than cracked cylinder. User was advised on proper dosage of Liquid M additive (222ml for 3.7L engine) but additive unlikely to resolve cracked cylinder damage. unresolved

Key facts: - Oil consumption rate: ~1 liter per 600-700 km with no visible leaks - Technician diagnosis: cracked cylinder wall with oil burning in combustion chamber - User notes vehicle shakes, reduced shaking after spark plug replacement - Using 10w40 fully synthetic oil - Top comment suggests turbo seals may be root cause rather than cylinder crack - Liquid M additive dosage calculated as 222ml for 3.7L engine (60ml per liter ratio)