Product Comparison: Shell Helix Ultra ECT 5W-30 vs Mobil 1 5W-30

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General Specifications
Mobil 1
Helix Ultra ECT 5W-30
About the Product
Shell Helix Ultra is a range of top-tier motor oil that is formulated using the unique Shell PurePlus Technology, yielding a motor oil that actively helps keep engines clean. Active Cleansing Technology has always been at the heart of Shell Helix. Starting with the unique Shell PurePlus Technology allows the product to provide even higher levels of cleansing and protection.
Mobil 1™ 5W-30 is an advanced full synthetic engine oil designed to keep your engine running like new by providing exceptional wear protection, cleaning power and overall performance. Mobil 1 5W-30 meets or exceeds the requirements of the industry's toughest standards and outperforms our conventional oils. Mobil 1 technology comes as standard equipment in many different vehicles, including select high-performance vehicles.
Key Specs
SAE Viscosity Grade
Engine Type
Diesel / Gazoline
0.87 quart(s)
1 quart(s)
What customers say about "Key Specs"
Shell Helix Ultra ECT 5W-30 Passenger Car Motor Oil
  • Considering the average price of VW 504.00/507.00 approved oils, this one is actually at the cheaper end of the market, yet I believe it is one of the best available.
  • Top quality 100% good grade oil very happy with the quality of this oil
  • This oil is very good Seem to stay clear longer in the car . So it look like it is not sludging .So car is running clean.
  • I ran the oil in my V6TDI Passat the year before and noticed how again these properties came about. It's worth its money tenfold in comparison to Halfords brands or even Main Dealer offerings.
  • Since I switched to this oil I have noticed the BMW diesel engine runs smoother with better economy than the original Castrol 0W40 diesel oil. Further research shows this is exactly the BMW dealer is currently using so big saving while the oil is on special.
Mobil 1 5W-30 Fully Synthetic Motor Oil
  • I switched to Mobile 1 recently, no more engine heat, no more tapping noise and never going back to any other oil. It's at 198,000 miles now and I know I can get another 100,000 out her if I stick to Mobile 1...
  • I've used this syn Mobil or Full synthetic Amsoil for years and never changed my oil under the recommended 7500 mile change period on our Infiniti & Land Cruiser engines. Both run like brand new and never burn any oil and I have ran Mobil extended 15,000 mi oil to 10k several times.
  • This is the only oil I use for my 2004 tacoma and it still runs well. It's a toyota so itll run well regardless
  • The engine quieted on start up, and smoothed out. I also always use Motorcraft oil filters since new. I have driven approximately 500 miles since the change over. The engine is quiet and smooth. I am satisfied that the Mobile 1 synthetic oil solved my noisy engines problem.
  • I first used Mobil 1 in a 1978 Ford F150 4X4 with a 351M engine. I removed the oil pan at 150000 miles to examine the bearings and crankshaft. There was minimal wear on all bearings and crankshaft. The surfaces were mirror smooth without any scoring on any surface.
Size & Weight
9.5 in.
8.6 in.
5 in.
4.2 in.
2.3 in.
2.5 in.
2.2 lbs.
2.03 lbs.
Canister Material
Temperature Range
-54.4°F up to 464°F
-43.6°F up to 446°F
BMW LL-04, MB-Approval 229.51, VW 504.00/507.00, Porsche C30
General Motors Service Fill dexos1™ Gen 2 (license number D10104GH015), Honda/Acura HTO-06
VW 500.00 / 502.00 / 503.00 / 503.01 / 505.00 / 506.00
General Motors 4718M, General Motors 6094M
ACEA Classification
A1/B1, A5/B5
Protects emission systems by helping to keep diesel particulate filters clean, Unsurpassed sludge protection – no other motor oil can keep your engine closer to factory clean, Up to 1.7% greater fuel economy
Advanced full synthetic formula, Outstanding thermal and oxidation stability, Excellent low-temperature capabilities
API Classification
What customers say about "Features"
Shell Helix Ultra ECT 5W-30 Passenger Car Motor Oil
  • I have used this oil in my 2011 VW Polo TDI and have been very happy with its performance. It is VW 504.00/507.00 approved, making it suitable for the DPF in this car, and the engine has been running quietly and smoothly, with zero oil usage for the last 8,000km.
  • Use this in my New Range Rover Sport as I like to keep a litre spare for topping up every 1000miles as per Land Rover's instructions.
  • Good quality oil at a good price and delivered earlier than expected.
  • What can you say - great quality oil at a smashing price. Would order again.
  • This oil is I find even on high mileage engines can offer protection and improve performance. I run dual fuel in my SEAT and engine sounds sweeter , smoother, and performance is up.
Mobil 1 5W-30 Fully Synthetic Motor Oil
  • I have been purchasing this motor oil for my 2013 Chevrolet Cruze. I need motor oil that is Dexos approved, and this specific one is. It is good quality and I have never had a problem with this brand.
  • I use Mobil 1 full synthetic 5w-30 high mileage on my 1996 Honda Accord LX 4 cyl 2.2 F22 naturally aspirated engine. She had 132,232 K when I bought her, I've had her for about 6 months now and tuned her up as soon as I got brought her down from Conneticut.
  • It's mobil 5-30 I got. I have a new corvette. Under the hood it states use mobil 1. Nuff said for me. It's the best.
  • After a day or so take them out and turn them over. The Mobil 1 will flow like it's a summer day and the 'dino' oil will flow like cold molasses. This is representative of what happens to the oil in your car during the winter.
  • Mobil 1 has always been a superior synthetic motor oil which I use in my vehicle. Oil stays clean and allows longer interval between oil changes. It actually saves money since you don't change oil as often.
Other Information

Other reviews