I have a 2004 Toyota Tacoma truck with the 2.4 motor and I recently changed from conventional "bulk load" oil to Mobil 1-Extended Performance 5W-30 oil. I was a little nervous because of all the horror stories I'd heard about oil leaks, but so far...so good. My motor runs fine, and no leaks!
Before I switched, I called Mobil and discussed which of their oils to change to and, no surprise, they recommended the "high mileage" oil because of the "seal conditioners".
I'd like to try a different oil at my next OCI, like the new Castrol Edge-Extended Performance, but I guess I'm wondering if I should be nervous about changing brands since my truck, after 1,500 miles on M1, doesn't leak? Is it safe to "assume" that if my truck doesn't leak on M1-EP that it probably wouldn't leak on another high quality oil? Obviously, neither of these oils are the "high-milage" varieties and therefore, do not have the magical "conditioners".
I guess I'm also wondering if the oils that have these "seal conditioners" are really effective and needed? Do they truly do anything beneficial and beyond what any other Brand X quality oil does or is it largely just another marketing idea to sell more oil?
Ed
Before I switched, I called Mobil and discussed which of their oils to change to and, no surprise, they recommended the "high mileage" oil because of the "seal conditioners".
I'd like to try a different oil at my next OCI, like the new Castrol Edge-Extended Performance, but I guess I'm wondering if I should be nervous about changing brands since my truck, after 1,500 miles on M1, doesn't leak? Is it safe to "assume" that if my truck doesn't leak on M1-EP that it probably wouldn't leak on another high quality oil? Obviously, neither of these oils are the "high-milage" varieties and therefore, do not have the magical "conditioners".
I guess I'm also wondering if the oils that have these "seal conditioners" are really effective and needed? Do they truly do anything beneficial and beyond what any other Brand X quality oil does or is it largely just another marketing idea to sell more oil?
Ed
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