Direct Injection, Oil, and trip distance

Insurance is all bundled for 5 cars $250 a month. two full coverage and three on liability. Only one is personal the Kia all others are company owned.
 
That's what we are seeing across the board here. Cheaper to keep them and just do oci every 6 months on the Kia. The Impala is getting listed to see if it'll sell
 
My wife's office is 2 miles from the house. Her main car is a 2012 Kia Optima 2.0 turbo, and it has had the motor replaced under factory recall. Her backup car is a 2012 Impala 3.6. I've been running Pennzoil Platinum 5-30 full syn in both cars. My dad who is a retired master tech specializing in Euro's, told me that because of the distance I should change her oil every 1500 to 2000 miles no more. He cited direct injection as the main issue due to wash out and to not run E85 for that short run in the Impala. The Impala has 130k and the Kia probably has 50k on the new motor. Now we do drive both cars on trips, so they get exercised, but the main job is office and back, maybe a bank run which is 1/4 mile from office so even worse.

1. What are the opinions here on this idea?
2. Anything further to add such as an additive for the fuel, etc.
As an owner of an early model GDI Hyundai I have to say a 2k oil change is not even a ridiculous suggestion. I do 2-3k and even with mostly long trips that stuff is diesel oil black from soot. A bottle of techron every oil change and use 5w-40 or above. I did 5k for the first 100k I owned it and I started getting varnish and carbon build up.
 
It's our company and cars. Three are service trucks and they get Napa oil or whatever is on sale. I just want her main car to last because she loves it and getting her to upgrade is going to be hard.
 
Back
Top Bottom