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Join Date: Nov 2012
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I had read on here not to long ago about this new oil weight in 15w40. Iím still using the tried n true T4 15w40 but for the upcoming winter where Iíll be traveling to colder climates often Iím interested in switching to either the T5 or the new T6 in 15w40. I see the T6 in 15w40 on amazon but where have you guys found it locally? I donít see it listed on Walmart website either. Iím not adding up the mileage a lot, maybe 5k annually.
Just looking to hear what anyone has experienced lately with that new weight oil and if itís worth it to buy over the T5 even though the T6 seems to be more then double the price over T5 on Amazon.
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I have been an avid user of conventional 15w-40 my whole life UNTIL LAST YEAR. I tried a full synthetic 5w-40 for winter and WOW. truck ran so smooth, warmed up quicker, sounded so much better in -25 etc. The only downfall was I burned more of it. some truck don't some do and mine ate it quickly compared to regular 15w-40. I now use the new t6 15w-40 full synthetic. Seems to work just as good and I don't burn nearly as much. I cannot find it anywhere online except walmart.com and advance auto (pricey there). so buy it locally if you can.
However even the rotella t5 15w-40 synthetic blend will run noticeably smoother in winter compared to regular 15w-40. My truck whined and groaned until it warmed up at -25. Check rotellas rebates. You can usually get $7 off a gallon for the t6 5w-40 and 15w-40.
Use t5 or t6 and you will hear/feel a difference. Im not gonn argue whether its worth the extra money with anyone but for me its been worth it every penny more.
-99 F250, 4X4, 6.0 trans cooler, 08 mirrors, 05 grill, AIS Intake, lvl kit, JW Vbody, cncfab hpop lines, WW2.
04 Excursion Modified, 04 F350 Modified, 06 F350 Modified
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"Its like me getting five 5 gallon bucks and throwing regular, mid, premium, #2 diesel and offroad diesel and then shooting a roman candle at each one to show which ones burns better."