






🛠️ Drive smarter, not harder — unleash elite engine power with Red Line 5W40!
Red Line 15404 SAE 5W40 is a fully synthetic motor oil engineered with ester/PAO base stocks for superior engine protection, extended drain intervals, and improved fuel economy. It meets top OEM specifications including VW, Audi, BMW, Porsche, and Mercedes-Benz, making it ideal for performance vehicles and turbocharged engines. Trusted since 1979, this premium oil ensures your engine runs cleaner, stronger, and longer.













































| ASIN | B000LNG6MM |
| Automotive Fit Type | Vehicle Specific Fit |
| Best Sellers Rank | #133,209 in Automotive ( See Top 100 in Automotive ) #732 in Motor Oils |
| Brand | Red Line |
| Customer Reviews | 4.6 4.6 out of 5 stars (43) |
| Date First Available | September 1, 2011 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 1.7 pounds |
| Item model number | RED15404 |
| Manufacturer | Red Line |
| Manufacturer Part Number | REEU5W40QT |
| Model | (1062852) 5W40 MOTOR OIL - QUART |
| OEM Part Number | 15404 |
| Product Dimensions | 4 x 4 x 8.8 inches |
| SAE J300 Viscosity Grade | 5W-40 |
| Size | 1 Quart |
| UPC | 083522154048 |
| Vehicle Service Type | Car |
| Viscosity | 5W-40 |
A**R
Best oil I have ever used
Love this oil. It is a little expensive but well worth the money. I use all Redline lubricants for my car and it works very well.
J**S
Best Oil out there
After a little reading I found this oil to be the best. It is a little pricey compared to others out there, but it is an actual full synthetic. I would also recommend this oil if you have a turbo car, it is easier on the turbo.
C**N
Redline Oil is the only true synthetic, ester-based oil
After some extended research, I came to the conclusion that this Benicia, CA -based oil is the only synthetic oil that is available for purchasing in the US of A. Almost all other "synthetic" oil, even the German-made Pentosin, is actually dino oil that's claimed to be synthetic due to no regulation. Very nice that it is now available for purchasing directly from Amazon.com for a competitive price, ships fast! Runs great in a Volkswagen Jetta 2.5L petrol engine.
C**N
Cold weather oil for Dielsel engines
I've used redline products for the past 15 years and my bill is about 1 grand a year to keep my cars and trucks filled with their products. Previously I've put the 15-40 in my diesel truck and car, but the 5-40 looks to have even better specs and I will now switch over to the 5-40 for my diesel engines. In colder climates, this oil should be easier on the starter (which I broke on my truck)
J**D
I got the oil
I have been trying for a year to get this specific brand of oil. I live in a small Alaska community only reached by air or boat. Yippee I finally got it.
S**G
2012 Audi A6 prestige.
After I tried Castrol OEM oil, Mutol VW specific 5w40. This has the least NVH by ALOT!! The acceleration are much smoother and the engine has ZERO vibration when idle.
J**2
Good but there are better IMHO
Used in my 2008 Porsche Cayenne V8. Could not tell the difference from Mobil 1 or MPT. Subsequently tried a German brand full synthetic motor oil which I preferred.
G**7
Five Stars
Good price, awesome oil for my Jdm motor swapped wrx.
S**N
Pues la entrega segun previsto. Y que puedo opinar sobre este aceite: este es el top de los aceites 5w40 ,a día de hoy no ai nada que lo supere,según prueba de laboratorio. De aquí ya no ai nada ,esto es lo más. Es un aceite full saps,osea no vale para filtro de partículas ,aunque es bajo en cenizas,supera un poco la norma C3 pero bueno ,avra que probar. Sin duda esto es la crema de los aceites.
W**M
El aceite muy bueno, pero el envio es carisimo, cosa muy mejorable.
グ**コ
オイル交換後、1ヶ月程経ちましたのでレビューします。まず交換後にエンジンが気持ちよく回るようになりました。また今でも効果が続いています。5000kmくらいまでは大丈夫そうです。冬場なので燃費については何とも言えませんが、また買いたいと思える商品です。
Trustpilot
2 days ago
2 weeks ago