![Is it safe to mix all these oil from different brands and use them? There's 2 10w30 weight oils, one from valvoline and other castrol, and one is Penrite 10w-40, the car Is it safe to mix all these oil from different brands and use them? There's 2 10w30 weight oils, one from valvoline and other castrol, and one is Penrite 10w-40, the car](https://i.redd.it/2f14rit26r781.jpg)
Is it safe to mix all these oil from different brands and use them? There's 2 10w30 weight oils, one from valvoline and other castrol, and one is Penrite 10w-40, the car
![Is It Ok To Mix Oil Brands - Can You Mix Different Brands Of Oil In Your Car Engine? Answered - IJP Automotive - Car Repair Garage in Barry Is It Ok To Mix Oil Brands - Can You Mix Different Brands Of Oil In Your Car Engine? Answered - IJP Automotive - Car Repair Garage in Barry](https://i.ytimg.com/vi/celH6X9nbyg/maxresdefault.jpg)
Is It Ok To Mix Oil Brands - Can You Mix Different Brands Of Oil In Your Car Engine? Answered - IJP Automotive - Car Repair Garage in Barry
![Can I mix two different brands of engine oil? Same viscosity, both fully synthetic. Have some of each left over after a couple of services and can get another oil change out Can I mix two different brands of engine oil? Same viscosity, both fully synthetic. Have some of each left over after a couple of services and can get another oil change out](https://i.redd.it/vl2net5d31751.jpg)