5w30 conventional motor oil
Skip it48/100a small market ($79K/yr) — 5w30 conventional motor oil doesn't clear our bar today.
Market/yr
$79K
Growth (1y)
+205.8%
Products
32
Brands
8
was 7 a year ago
Sellers
117
Price range
$6.37–$78.81
Returns
0.5%
Rating
4.8★
Skip it
Scored 48/100 across market size, growth, competition, quality gap, and returns.
Demand
Weekly Amazon search volume, last 48 weeks — +205.8% year over year.Competition
- Quaker State27%
- Castrol24%
- Valvoline23%
- Pennzoil17%
- Barnesmith5%
- Motorcraft1%
- Other (2 brands)2%
The top 5 products take 51% of clicks — established leaders, but buyers still shop beyond them. 8 brands and 117 sellers compete here.
Brands
8 rising
was 7 a year ago
Sellers
117
Top 5 brand share
96%
Product shelf
All 32 tracked products in this niche.

Valvoline MaxLife High Mileage 5W-30 Synthetic Blend Motor Oil 5 Quart
Valvoline
$20.594.8★28,037 reviews

Quaker State Full Synthetic 5W-30 Motor Oil 5 Quart (3 Pack)
Quaker State
$63.874.6★149 reviews

Pennzoil High Mileage 5W-30 Motor Oil 1 Quart (6 Pack)
Pennzoil
$25.584.8★576 reviews

Castrol GTX High Mileage 5W-30 Synthetic Blend Motor Oil 5 Quarts
Castrol
$20.524.8★8,467 reviews

Castrol GTX 10W-30 Conventional Motor Oil 5 Quarts
Castrol
$20.814.8★4,417 reviews

Quaker State Full Synthetic 5W-30 Motor Oil 1 Quart (6 Pack)
Quaker State
$44.554.6★149 reviews

Castrol GTX 5W-30 Synthetic Blend Motor Oil 5 Quarts
Castrol
$19.644.8★2,808 reviews

Pennzoil 5W-30 Motor Oil 1 Quart
Pennzoil
$6.374.8★2,607 reviews
Reviews
What buyers praise and complain about, mined from review topics.What buyers love
“Excellent value”
“great product, as advertised”
“Best oil”
“As advertised”
“good motor oil for high mileage vehicles”
“works well”
“Easy to use”
“Functions great and my engine to feels smooth”
“clean no damage no leaks”
“Perfect fit for OEM”
What buyers complain about
“arrived leaking”
“Oil is not oil”
“It would of blown up my engine”
“a bit pricey”
“Waste”
“my car's engine failed”
“until your boyfriend forgets to tighten the oil filter”
“Not full synthetic”
“Oil weight”
“Took a little to get use to box”
Top return reasons
- Leak-Proof25%
- Compatibility-Overall20%
- Lubrication12%
- Value For Money11%
- Advertised Vs Actual Product9%
- Material Quality5%
- Motor Issues3%
- Size-Overall3%
- Defective Material/Parts3%
- Certifications2%






