5w40 full synthetic oil diesel
Skip it43/100a small market ($61K/yr) — 5w40 full synthetic oil diesel doesn't clear our bar today.
Market/yr
$61K
Growth (1y)
+278.2%
Products
17
Brands
10
was 10 a year ago
Sellers
100
Price range
$22.00–$163.04
Returns
0.6%
Rating
4.8★
Skip it
Scored 43/100 across market size, growth, competition, quality gap, and returns.
Demand
Weekly Amazon search volume, last 102 weeks — +278.2% year over year.Seasonality
Monthly demand index across the year — 1.00 is average.No pronounced peak months · busiest ÷ quietest = 1.6×
Competition
- Shell Rotella51%
- Valvoline18%
- Mobil13%
- Schaeffer Manufacturing Co6%
- Royal Purple3%
- Ford2%
- Other (4 brands)7%
The top 5 products capture 73% of clicks — a locked-up shelf that new listings rarely crack. 10 brands and 100 sellers compete here.
Brands
10 flat
was 10 a year ago
Sellers
100
Top 5 brand share
91%
Product shelf
All 17 tracked products in this niche.
Shell Rotella T6 Full Synthetic 5W-40 Diesel Engine Oil 1 Gallon
Shell Rotella
$23.544.8★12,007 reviews
Shell Rotella T6 Full Synthetic 5W-40 Diesel Engine Oil 1 Gallon (3 Pack)
Shell Rotella
$67.964.8★12,007 reviews
Mobil 1 Turbo Diesel Truck Full Synthetic Motor Oil 5W-40 1 Gal
Mobil
$29.824.8★695 reviews
Valvoline Premium Blue Extreme SAE 5W-40 Full Synthetic Diesel Engine Oil 1 GA Case of 3
Valvoline
$97.744.7★1,933 reviews
Valvoline Premium Blue Extreme SAE 5W-40 Full Synthetic Diesel Engine Oil 1 GA
Valvoline
$33.634.7★1,933 reviews
Schaeffer Manufacturing Co. 9000CK4-006S SynShield OTR Plus Full Synthetic Diesel Engine Oil 5W-40 1-Gallon Bottle
Schaeffer Manufacturing Co
$53.524.8★505 reviews
Valvoline European Vehicle Full Synthetic SAE 5W-40 Motor Oil 5 QT
Valvoline
$30.174.8★3,011 reviews
Royal Purple 83540 Duralec Super 5W-40 CK-4 Motor Oil 1 Gallon (Pack of 1)
Royal Purple
$39.315.0★10 reviews
Reviews
What buyers praise and complain about, mined from review topics.What buyers love
“Excellent value”
“The best overall synthetic oil”
“Great for better Performance”
“Accurate description”
“increased fuel mileage”
“quieter”
“Excellent product for my 3.0 Italian diesel motor”
“Gret deal, no leakage”
“this oil for my diesel truck keeps my engine cooler”
“FINE FOR A HEAVY USER/HAULER”
What buyers complain about
“Was a lot cheaper then tacking to the dealer”
“Boxes leak”
“I think the viscosity is not as good as the caster oil”
“JUST RETIRED”
“Poor fuel filters”
“Not for your average gas engine”
“small quantities for truck”
“they can blow up your engine”
“Cheaper than Walmart and better quality”
“it was a mess”
Top return reasons
- Leak-Proof39%
- Lubrication19%
- Compatibility-Overall13%
- Value For Money10%
- Advertised Vs Actual Product4%
- Defective Material/Parts3%
- Size-Overall2%
- Product Condition2%
- Motor Issues1%
- Fuel Efficiency1%