Shell Rotella T6 Full Synthetic 5W-40 Diesel Engine Oil, 1 Gallon (3 Pack)

Use this in my 2004 Sprinter. However I mix it with the shell non-synthetic equivalent so it doesn't blow past the rings so bad. My 2004 has 280,000 miles on it. Still works excellent but synthetic is a bit too thin. I must add about 2quarts to it between oil changes. All regular oil drops mpg by about 1.5 mpg. Mix the two to about 3/5ths synthetic to 2/5ths non-synthetic and I get the same mpg as all synthetic and I can go the distance between oil changes without adding any oil. Good compromise and less work, slightly lower cost. I also use Diesel Clean in the fuel to boost cetane, stabilize the fuel, and make the fuel pumps last longer (and improve mpg). I get about 25 to 26 mpg when I add Diesel Clean and use synthetic oil.

I’ve had great results with Shell Rotella T6 5W-40 in my diesel engines. It flows well on cold starts and maintains strong oil pressure once the engine is up to temperature. The full synthetic formula is worth the extra cost for the added protection and consistent performance. I’ve used this oil for years and haven’t had any issues. It’s a product I trust and will continue to buy for all my diesel equipment.

I've put lots of miles on three different diesel trucks using Shella Rotella T-6 and I've never had an oil related issue. I have sent this oil to Blackstone laboratories in the past and it always comes back within specs all the way up to the 15k mile mark. The price is decent. If isn't broke, I'm not going to change. Update 22Dec25: I have continued to use this oil in my 2015 Ram 2500, as well as my 2024 Ram 2500. I continue to have great performance with Rotella T6. I have sent oil samples off to Blackstone Laboratory's for oil analysis. Per Blackstone, my oil always falls within acceptable ranges. While the Ram 2500 w/a 6.7L Cummins recommends a 15K oil change interval, I have transitioned to about a 7500 mile oil change intervals. Blackstone's results state that I could run this oil much longer than I do. I would again recommend Rotella T6 for diesel motors.

Works superbly in my 2003 Suzuki SV650. Highly recommended. I can't believe how smooth my bike now clicks into gear, revs out, and up/down shifts vs. other oils. Just to repeat what a lot of people know (and DON'T know) about this oil; its actually JASO DH-2 & MA/MA2 approved and has the stamp on the bottle to indicate it’s for motorcycle use. That means it’s safe for dry and wet clutch applications. Here's the current properties per Shell at the date of my original post for nerds like me: >ROTELLA T6 5W-40 Kinematic Viscosity @ 40C mm2/s ASTM D445 90 Kinematic Viscosity @ 100C mm2/s ASTM D445 14.9 Dynamic Viscosity @ -30C mPa s ASTM D5293 6300 Total Base Number (TBN) [ mg KOH/g ASTM D2896] 10.2 Sulfated Ash % ASTM D874 1.0 Density @150C kg/l ASTM D4052 0.846 Flash Point (COC) 0C ASTM D92 233 Pour Point 0C ASTM D97 -51 ...And if you dig around T6 5w-40 is Volvo VDS-4 certified. So while Shell does not officially publish this, it must have a HTHS viscosity (Greater than) >3.9cP to meet this spec. —— 1 Year update ——- One year and (2) T6 changes later; the bike has never run as well or shifted as smooth. All winter and into the spring/summer (very mild a swing of only 40F to 80F ambient) my bike is never reluctant to upshift or downshift as it should, even cold. After 3k miles of brisk commuting everything felt great just before changing out the oil. T6 is proving to be unbeatable moto oil, and for so cheap!

Good product good delivery

Very Good oil decent price.

Good quality oil

Cheaper than Walmart and better quality

El producto llego sin problemas, días antes de lo prometido. Muchas gracias

Gran calidad de aceite. Funciona perfecto en mi Jeep TJ. Motor trabaja más suave y mejora el sonido. Reduce el desgaste

Lo mismo que le pongo le saco cuando le hago su cambio de aceite, el motor trabaja mejor y con menos ruido, recomendado ✅

El producto viene bien empacado, en caja original. Las botellas ya no tienen sello metalizado debajo de la tapa roscada de plástico de seguridad, pero es lo normal, para quienes andan con el rollo de que les venden aceite adulterado.

En varios blos de autos, he leido que este aceite es bueno para motores turbo, por lo que me anime a comprarlo...aunque aun no lo pruebo, espero actualizar esta reseña pronto.