I’m a fleet manager for a delivery company. Recently we expanded into another state and in this purchase came a mechanic and his apprentice.
He is a old school kind of guy, he uses what he’s been using forever, and it is not working. The equipment that came with this purchase is in rough shape.
A Ford V-10 with 85k on it is sludged up For example.
He has been buying the oil as needed at the most expensive place around. The oil he’s been buying is Mag1 which is a Warren Distributing dino oil and he’s paying $6/qt.
For the diesels he’s using Rotella or Delvac.
He is way over paying for the oil.
So I brought him a syn blend 15w-40 diesel oil and told him to use it in everything, he refuses to use it in the gas engines because, according to him, it will mess up the cam phasers and hydraulic timing chain tensioners.
He also claims it will sludge up the engines and that “they are rated for 5w-20 for a reason“
Now I’ve been using this oil in my gasoline engines for almost a year with zero problems. I have one truck closing in on 50k quickly and I am going to do a oil sample at that oil change.
The very first oil change there was oil consumption. 1 qt in 10k on the factory fill.
Now there is zero oil consumption. In the hottest dog days of summer the trucks used less than a quart in 10k.
The cam phasers are electronic.
I have zero timing/run issues. MPG is good for what we do (~8mpg)
Do I need to put my foot down and say use this or else?
Do I need to switch motor oil?
Also he does not go by miles for oil changes, he goes by “I have a system”
Any help would be appreciated.
He is a old school kind of guy, he uses what he’s been using forever, and it is not working. The equipment that came with this purchase is in rough shape.
A Ford V-10 with 85k on it is sludged up For example.
He has been buying the oil as needed at the most expensive place around. The oil he’s been buying is Mag1 which is a Warren Distributing dino oil and he’s paying $6/qt.
For the diesels he’s using Rotella or Delvac.
He is way over paying for the oil.
So I brought him a syn blend 15w-40 diesel oil and told him to use it in everything, he refuses to use it in the gas engines because, according to him, it will mess up the cam phasers and hydraulic timing chain tensioners.
He also claims it will sludge up the engines and that “they are rated for 5w-20 for a reason“
Now I’ve been using this oil in my gasoline engines for almost a year with zero problems. I have one truck closing in on 50k quickly and I am going to do a oil sample at that oil change.
The very first oil change there was oil consumption. 1 qt in 10k on the factory fill.
Now there is zero oil consumption. In the hottest dog days of summer the trucks used less than a quart in 10k.
The cam phasers are electronic.
I have zero timing/run issues. MPG is good for what we do (~8mpg)
Do I need to put my foot down and say use this or else?
Do I need to switch motor oil?
Also he does not go by miles for oil changes, he goes by “I have a system”
Any help would be appreciated.