Quote:
Originally Posted by I.E. Titan
im using mobil 1 10w-30 i honestly do not like it.. it made my titan have a knocking sound.. i guess thats what i get for cheating on amsoil
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I don't know what is best for the Titan, I guess it is whatever fulfils your requirements best. I have used Mobil I synthetic in all our vehicles in the last 20 years. I have an 08, KC, BT SE and I changed the oil and diff fluid at 1000 miles to Mobil I products. Hard to say I could tell any difference. At 5000 miles I changed the oil to 5W-30 Valvoline SynPower synthetic (got a coupon deal so thought i would try it). Sounded the same and drove the same with the same mileage. At 10,000 miles I replaced the oil again with the same Valvoline SynPower and noticed it came out somewhat darker than the Mobil I did but the Mobil I had 4000 miles at changeout and the SynPower had 5000 miles? I did not do an analysis and black is not necessarily bad. I also changed the rear end fluid again at 10,000 because I was going to tow 5000 lbs for about 400 miles and the forums are filled with horror stories about our differentials.