Hello Everyone,
I have a question regarding mixing oils together. I’m looking for added protection in my engine, and would appreciate some opinions. I have a 2005 Dodge Dakota with a 4.7L V8 and 96,000 miles. The manual states to use 5w-30. I live in south-east Wisconsin and the truck is parked outside during the winter. I try to drive economically to save gas, however I normally have a problem with keeping my foot out of it. My driving style is very mixed with economic driving, along with jack-rabbit starts and aggressive driving. I drive on the freeway and open roads, with little city driving. All trips are longer than 10 miles so the engine always gets to operating temps. I currently am using Castrol GTX High Mileage and I’m happy with it. I did put Valvoline Synpower in the truck when I first got it and ended up with a leak from the front crankshaft seal within the first 1000 miles so I got it fixed and I don’t want to go back to full synthetic. I want to stick with the GTX High Mileage, but for my next oil change I was contemplating whether or not to switch a quart of the High Mileage for a quart of the Edge (Castrol Synthetic). Are the oils going to be compatible as long as they are both 5w-30? Would this have any benefits? My major concern is will the quart of synthetic have any effect on the seals in the engine? There are no leaks any more, but I don’t want any to develop. The engine holds 6qts of oil so roughly 16% would be synthetic, with the rest being high mileage. All opinions are appreciated.
Thanks,
Bob
I have a question regarding mixing oils together. I’m looking for added protection in my engine, and would appreciate some opinions. I have a 2005 Dodge Dakota with a 4.7L V8 and 96,000 miles. The manual states to use 5w-30. I live in south-east Wisconsin and the truck is parked outside during the winter. I try to drive economically to save gas, however I normally have a problem with keeping my foot out of it. My driving style is very mixed with economic driving, along with jack-rabbit starts and aggressive driving. I drive on the freeway and open roads, with little city driving. All trips are longer than 10 miles so the engine always gets to operating temps. I currently am using Castrol GTX High Mileage and I’m happy with it. I did put Valvoline Synpower in the truck when I first got it and ended up with a leak from the front crankshaft seal within the first 1000 miles so I got it fixed and I don’t want to go back to full synthetic. I want to stick with the GTX High Mileage, but for my next oil change I was contemplating whether or not to switch a quart of the High Mileage for a quart of the Edge (Castrol Synthetic). Are the oils going to be compatible as long as they are both 5w-30? Would this have any benefits? My major concern is will the quart of synthetic have any effect on the seals in the engine? There are no leaks any more, but I don’t want any to develop. The engine holds 6qts of oil so roughly 16% would be synthetic, with the rest being high mileage. All opinions are appreciated.
Thanks,
Bob