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Oil
Hi Pavan, Heavier oil is not neccesarily better. Every engine is designed for a certain grade and weight of oil. To thin or to heavy will damage an engine. At the least, to heavy will give poorer gas milage. I f you look at owners manuals they always say if your vehicle is driven under adverse conditions, the oil should be changed more often. High speed, high temps or dusty conditions. If your vehicle is using oil then it has worn parts that are letting oil "burn" or drain out. Just using heavier oil will not change this. So as a rule use what the maker recommends. Consumer Reports tested oils in New York taxis. and found no difference in regular and Synthetic oils. I still use synthectic oil myself.Take care, BOBB
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