If your in Texas, using a 10W30 instead of a 5W30 will make no difference to your vehicle. The 5, 10 is the way the oil acts when in a cold engine, when the engine warms to operating temps, the oil acts like 30 weight oil.
Some of the advertised high mileage oils have additional additives, to help clean the engine. There are 2 schools on if this is good, sometimes it's best to leave a "dirty" engine alone.
But, you've been running synthetic oil, so your engine will not be "dirty" anyway.
The term "high mileage" may have too meanings, one is an oil for vehicles with high mileage, the other is where extended oil changes are wanted.
I didn't check the oil you where thinking of using, so I don't know which category it falls into.
If cost is a factor, maybe your changing the oil too early.
Some of the advertised high mileage oils have additional additives, to help clean the engine. There are 2 schools on if this is good, sometimes it's best to leave a "dirty" engine alone.
But, you've been running synthetic oil, so your engine will not be "dirty" anyway.
The term "high mileage" may have too meanings, one is an oil for vehicles with high mileage, the other is where extended oil changes are wanted.
I didn't check the oil you where thinking of using, so I don't know which category it falls into.
If cost is a factor, maybe your changing the oil too early.
