Thread: Mixing engine oils?

IMO better not mix fully with semi, especially not different brands.... though if you mean drop one entirely and put the other no probs

Originally Posted by sierrafery

IMO better not mix fully with semi, especially not different brands.... though if you mean drop one entirely and put the other no probs

X2 No .
Oh a Simple Google got this for you
What Happens if You Mix Regular and Synthetic Oil?

Originally Posted by rangieman

X2 No .
Oh a Simple Google got this for you
What Happens if You Mix Regular and Synthetic Oil?

Yeah but I looked for semi synthetic mixed with fully synthetic.
Your google found Regular ie. mineral and synthetic.

Cheers

Bo

Originally Posted by Bohica

Yeah but I looked for semi synthetic mixed with fully synthetic.
Your google found Regular ie. mineral and synthetic.

Cheers

Bo

You asked and you got answered , It`s your car do what you want ,
No more from me then good luck

The base oils aren't the issue, it's the dilution of the additive package that's a potential problem.

In real world use you'll probably find no issue at all, but an engine oil is a finely balanced blend of base oils and additives, with the additive package accounting for up to 25% by volume of the oil.
In some ways you could view it that the base oils are there merely as a carrier for the additive package. The mix of additives provide a lot of the Extreme Pressure (EP) and Anti Wear (AW) duties, anti scuff resistance, anti-oxidation duty, detergent and dispersant properties, etc.

Put it this way, the resulting blend isn't going to start bubbling and frothing and smoking, nor is it going to suddenly breakdown and become like water, but you are potentially diluting the resulting additives which may or may not be similar and in similar ratios.
It all depends who Nulon buy their add package through and then, which one they are using in that particular oil.
Penrite have (or at least had) a very strong relationship with Lubrizol.

I wouldn't sweat it too much if they meet the same specs and you aren't going to be towing a 32' monster van in 40*+ temps off road in low low while rock hopping.

So it's out with the magnatec and in with the Nulon Fully Synthetic

https://www.autobarn.com.au/full-syn...engine-oil-10l

Cheers

Bo

Very good to see Rick 130 back on deck. I hope you've been ok Rick.
Don.

value for money and high quality product, I couldn't top it.
DELVAC 1 ESP 5W-40