Reader Interactions


  1. Little confused hope you can clear up for me. Rotella ty only comes in 5w40 but on the chart it says if you are towing you must use 15w40. Does that mean that if I tow my fifth wheel in the summer rotella t6 is not the way to go for me.?

  2. Mr. Lucas,
    My name is Ramondo Farinella and we are a family owned Nursery/Landscaping Company in St. Louis, Missouri and I have a couple of 2006′ F550’s with the 6.0L power stroke diesel engine. I purchased these trucks from the dealer with about 60,000 miles on them. Now they have about 225.000 miles. I’ve been changing the oil every 3,000 miles religiously and I’ve been purchasing a 15W-40 oil called Super Tech from Walmart. Do you think it would be best to get back to a Rotella T6 oil change my next oil change? We also tow trailers quite frequently. Thank you in advance for your advice.

    314-920-9800 cell phone

  3. I live I Manitoba Canada it’s always cold here lol
    The best oil I’ve found for my 6 litre with 220k on it
    Is t 6 0w 40 it’s starts easy. Doesn’t bang and bark as it did with the conventional oil
    Worth the extra cash

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