Vehicles using VAZ-2121.4/3 engine list:

Recommended oil for engine VAZ-2121.4/3 engine.

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Questions strictly about engine codes (brand/model/engine type/production years).
Oil Specs Comparison
Castrol EDGE 0W-40 A3/B4
Castrol EDGE 0W-40 A3/B4
ACEA A3/B4✔
API SP✔
BMW Longlife-01✔
MB 229.5✔
Porsche A40✔
Renault RN0700/0710✔
VW 502 00/505 00✔
Ford WSS-M2C937-A✔
Motul 8100 X‑Max 0W‑40
Motul 8100 X‑Max 0W‑40
ACEA A3/B4✔
API SP✔
BMW Longlife‑01✔
MB 229.5✔
Porsche A40✔
VW 502 00 / 505 00✔
Renault RN0700/0710✔
Ford WSS‑M2C937‑A✔
Total Quartz 9000 Energy 0W‑40
Total Quartz 9000 Energy 0W‑40
ACEA A3/B4✔
API SP✔
BMW Longlife‑01✔
MB 229.5✔
Porsche A40✔
VW 502 00 / 505 00✔
Renault RN0700/0710✔
Ford WSS‑M2C937‑A✔
Petronas Syntium 7000 0W‑40
Petronas Syntium 7000 0W‑40
ACEA A3/B4✔
API SP✔
BMW Longlife‑01✔
MB 229.5✔
Porsche A40✔
VW 502 00 / 505 00✔
Renault RN0700/0710✔
Ford WSS‑M2C937‑A✔
Oil specification key
✔ – Meets the required specification
❓ – Not explicitly stated (use caution; check your vehicle manual)
❌ – Does not meet required specification. Use may cause engine issues.

Answer generated by AI.

Oil specifications for VAZ-2121.4/3 engine

SAE 10W-40
API SJ
API SL
API SM
API SN

Most common problems, symptoms & fixes for the VAZ-2121.4/3 engine.

Engine VAZ-2121.4/3 commonly faces issues like carburetor clogging, oil leaks, and ignition system wear. Diagnosis involves checking for rough idling, poor acceleration, or smoke from the exhaust. Preventive measures include regular oil changes, cleaning or replacing the air and fuel filters, and timely spark plug maintenance. Carburetor cleaning or adjustment often resolves fuel delivery problems. Oil leaks can be fixed by replacing gaskets and seals. Ignition issues require checking distributor caps, rotors, and spark plug wires. Regularly inspecting the cooling system prevents overheating. Following these steps ensures reliable performance and extends engine life in the Lada Niva models.