in 5 offers
The lowest price for AMSOIL Premium Protection Synthetic Engine Oil right now is $42.95 at Amsoil Australia, compared across 5 retailers.
The all-time low was $37.80 on 2 Aug 2026 — today's price is 14% above the lowest ever. That's a little above the best price we've seen.
Prices last updated 12 Oct 2026.
AMSOIL Premium Protection Synthetic Engine Oil
Last updated at 12/10/2026 19:01:53
Premium Protection 20W-50 Engine Oil ARO
Delivery between Tue – Sat $20
SAE 20w-50 Synthetic Premium Protection Motor Oil - 1 Gallon (3.78Liter) - Synthetic Lubricants
Amsoil - SAE 20W-50 Premium Protection Synthetic Motor Oil
Delivery $20.05
Amsoil Premium Protection 20w-50 100% Synthetic Engine Oil 3.78l
Delivery $12.50
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Amsoil Premium Protection 20W-50 100% Synthetic Engine Oil 3.78L Bottle
Delivery between Fri – Mon $8.80
| Size | 1 Quart |
| Measurement Standard | SAE |
| Form Configuration | Oil |
| Form | Liquid |
| Material | Synthetic base oils |
Premium Protection 20W-50 Engine Oil ARO
Delivery between Tue – Sat $20
SAE 20w-50 Synthetic Premium Protection Motor Oil - 1 Gallon (3.78Liter) - Synthetic Lubricants
Amsoil - SAE 20W-50 Premium Protection Synthetic Motor Oil
Delivery $20.05
Amsoil Premium Protection 20w-50 100% Synthetic Engine Oil 3.78l
Delivery $12.50
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Amsoil Premium Protection 20W-50 100% Synthetic Engine Oil 3.78L Bottle
Delivery between Fri – Mon $8.80
| Size | 1 Quart |
| Measurement Standard | SAE |
| Form Configuration | Oil |
| Form | Liquid |
| Material | Synthetic base oils |
