Recent content by Allterrainjeeper

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    Shell rotella t 15/40

    It's not the weight I'm concerned with. I didn't know if there's other additives in the oil that could be harmful to the engine.
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    Shell rotella t 15/40

    Can't remember it's either that or 5/30
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    Shell rotella t 15/40

    98 f150 4.6. I just run a thick oil in the summer heat so it doesn't thin out as much. Just high mileage. I figured the shell isn't as thick as the 20/50 so why not. I just wanna make darn sure I'm not gonna screw my engine up but engines don't know what kind of oil it is they just know it's oil...
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    Shell rotella t 15/40

    So my question is this. I've heard a lot of people use shell in there gas engines because it keeps things clean and is a really good oil. I mean 15/40 isn't that heavy of an oil. I use 20/50 conventional oil in the summer time because of my high mileage. Other than different additives what's...
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