+241°
🛢️Motor oil & fluids
LIQUI MOLY Top Tec 4200 SAE 5W-30 New Generation
$8.33Cost / quart
Price checked Jul 22 · confirm on Amazon🔥 Popularpack price$43.99$58.99↓25%
LIQUI MOLY · Amazon
See on Amazon Updated July 22, 2026· By OutletPicks Editorial
Best Motor Oil Deals This Week — July 2026
The top 12 motor oil deals right now — biggest genuine price drops first, measured against our own tracked price history (never a scraped “list price”), then the cheapest real cost per quart. One stable page, re-ranked daily.
#1$8.33 / quart ↓25%
#2$5.19 / quart ↓12%
+128°
🛢️Motor oil & fluids
Castrol EDGE Extended Performance 0W-20 Advanced Full…
$5.19Cost / quart
Price checked Jul 22 · confirm on Amazon🔥 Popularpack price$25.97$29.48↓12%
subscribe & save$4.93−5%
💚 13% below median $/quartCastrol · Amazon
See on Amazon #3$5.19 / quart ↓12%
+169°
🛢️Motor oil & fluids
Castrol Edge Extended Performance 5W-20 Advanced Full…
$5.19Cost / quart
Price checked Jul 22 · confirm on Amazon🔥 Popularpack price$25.97$29.48↓12%
subscribe & save$4.93−5%
💚 13% below median $/quartCastrol · Amazon
See on Amazon #4$9.24 / quart ↓11%
+123°
🛢️Motor oil & fluids
Liqui Moly Molygen New Generation SAE 0W-20 | 5 Liter | Fully…
$9.24Cost / quart
Price checked Jul 22 · confirm on Amazon🔥 Popularpack price$48.80$54.79↓11%
LIQUI MOLY · Amazon
See on Amazon #5$12.27 / quart ↓9%
+96°
🛢️Motor oil & fluids
MOTUL 8100 X-Cess Gen 2 SAE 5W40 Full Synthetic Motor Engine…
$12.27Cost / quart
Price checked Jul 22 · confirm on Amazonpack price$64.81$71.36↓9%
⚠️ 2.1× the median $/quartMotul · Amazon
See on Amazon #6$12.72 / quart ↓6%
+98°
🛢️Motor oil & fluids
LIQUI MOLY Diesel High Tech SAE 5W-40 | 5 L | Fully synthetic…
$12.72Cost / quart
Price checked Jul 22 · confirm on Amazonpack price$67.19$71.14↓6%
⚠️ 2.1× the median $/quartLIQUI MOLY · Amazon
See on Amazon #7$5.98 / quart ↓5%
+164°
🛢️Motor oil & fluids
Castrol EDGE 0W-20 Advanced Full Synthetic Motor Oil
$5.98Cost / quart
Price checked Jul 22 · confirm on Amazon🔥 Popularpack price$35.89$37.96↓5%
subscribe & save$5.68−5%
Castrol · Amazon
See on Amazon #8$9.49 / quart ↓1%
+66°
🛢️Motor oil & fluids
Mobil 1 0W-20 Advanced Fuel Economy Full Synthetic Motor Oil
$9.49Cost / quart
Price checked Jul 22 · confirm on Amazonpack price$94.89$95.99↓1%
Mobil · Amazon
See on Amazon #9$4.27 / quart
+145°
🛢️Motor oil & fluids
ACDelco GM Original Equipment 10-9327 (19432320) dexos1 GEN 3…
$4.27Cost / quart
Price checked Jul 22 · confirm on Amazon🔥 Popularpack price$64.10
💚 29% below median $/quartACDelco · Amazon
See on Amazon #10$4.50 / quart
+120°
🛢️Motor oil & fluids
Pennzoil 10W-30 Motor Oil, 5 Quart
$4.50Cost / quart
Price checked Jul 22 · confirm on Amazon🔥 Popularpack price$22.48
subscribe & save$4.27−5%
💚 25% below median $/quartPennzoil · Amazon
See on Amazon #11$4.59 / quart
+83°
🛢️Motor oil & fluids
Valvoline MaxLife High Mileage 5W-30 Synthetic Blend Motor Oil…
$4.59Cost / quart
Price checked Jul 22 · confirm on Amazonpack price$22.97
💚 23% below median $/quartValvoline · Amazon
See on Amazon #12$4.59 / quart
+77°
🛢️Motor oil & fluids
Valvoline High Mileage with MaxLife Technology 10W-30…
$4.59Cost / quart
Price checked Jul 22 · confirm on Amazonpack price$22.97
💚 23% below median $/quartValvoline · Amazon
See on Amazon How this list is ranked
Drops are measured against the prices we’ve recorded for each product ourselves, refreshed on a rolling cycle — not against an inflated “list price”. When fewer than 12 deals genuinely dropped this week, the cheapest cost per quart fills the remaining slots, so every pick is either a real reduction or real value. See the methodology for details, or browse every motor oil deal ranked by cost per quart and all live price drops across categories.