I do my own oil changes and have been trying to find a better way to purchase the oil I needed for my truck, this is perfect, price is better than you can get anywhere, even for the 2.5 gallon container, and shipped to my door within a few days of ordering. I highly recommend shell Rotella, I have been using it for years in my old 7.3l power stroke and now getting this new t6 blend for my 6.7l powerstroke

I rebuild bikes.. And this IS the stuff! Shadow's, Intruder's, Gixxers.. doesn't really matter. The bike will shift smoother, start easier, and run quieter. Just remember.. if you go synthetic, you gotta stay synthetic. ALWAYS change the filter when you change the oil.

Anyone with a Ford 6.0 PowerStroke who lives in a climate where it gets below freezing knows the engine makes knocking noises and is loud & unresponsive when the engine is started in cold weather if the block heater has not been plugged in. With synthetic Rotella T6, though, the engine is much quieter, and does not require as much warm-up time as compared to using conventional oil. Even if one uses a block heater at home, most people don't have that luxury to keep their truck plugged in while at work. It sure makes the drive home quieter and faster, not having to let the engine warm up as much before hitting the road

This oil completely stopped the cold start surging on my 2000 7.3 Powerstroke F350, even at below zero without being plugged in...(I am often out of town where I cannot plug in). With regular 15w40 RotellaT, it would not start at all below about 25 degF unless plugged in. With the Rotella T6 5w40 synthetic, it starts, even below zero, without being plugged in....and no surging at all. I assure you I am not employed by Shell or Rotella, I just love this oil. I only run it in the winter though, with 190,000 miles on my truck, I figure the regular Rotella is good enough for summer...as you know the synthetic Rotella gets expensive when you are buying 4 gallons.

Been using Rotella synthetic for years used in cars trucks and motorcycles since new 87 kawasaki concours 1000 60,000 miles + 93 Pontiac Bonneville into 130,000 Yamaha V-Max 19,000 miles, 2009 Chevrolet Avalanche 202,000 miles, also used it in Kaw.Concours 1400 and Piaggio BV250 Scooter, ULTIMATE PROTECTION!!!

As a 6.7 cummins owner that hauls a 12,000lb 5th wheel I trust my Ram to get me where I want to go and not worry about my motor. I have used nothing but Rotella T6 and will let my consumption guage get to 15% life left before I change the oil and filter. After driving 7,000 miles and changing it I could still feel the heaviness to the oil so I know this oil isn't breaking down prematurely. I won't trust my engine to anything but this oil

I have been using Rotella in my 1997 Ford F-250 since I bought the truck new in 1997. I switched from T-4 to T-6 a few years ago and only use about 4 oz of oil between changes every 5000 miles. The truck starts much easier in cold weather. I have 178,000 miles on the truck and I have no oil leaks.

Have been running T-6 5W40 since 2011. Never had an issue getting the oil. Now I have had my first oil change in my 6.7 PSD and had to use Mobil Diesel oil. 5,000 miles in and can hear a difference in the sound of the engine. So, shell when I get my oil sample back will you still honor your engine warrant since I was not able to get your oil ? Yes seriously I miss your oil and hurry the heck up and get t-6 to us!!

I have been using this oil in my 1998 Honda F6 Valkyrie Tourer for 6 years now, and have had no issues with clutch operation. Even at full throttle with the big 6 cylinder engine, no clutch slippage. Also, the notorious Valkyrie top gear whine was a lot quieter immediately after the first oil change. It's also priced a lot cheaper than the competing oils, a nice added bonus. I don't hesitate to change the oil when I should, when the price is about half of other high end or OEM oils. It's available at many local retailers, so, it's easy to obtain. I wish it was available in other weights like 5W20. I would use it my 2010 F150 5.4L if I could, because it's really not that much more expensive than conventional oil.

Like others who reviewed T6, I have used this in my bikes for years, as do the group of guys I ride with regularly. Never had a problem and performance is excellent. Even at 5,000 mile between oil changes it comes out of the bike looking like fresh new oil. Much more cost effective than motorcycle specific synthetic products too. Try it, you won't be disappointed!