Mixing two oils that have equivalent properties will not pose a problem, but final performance cannot be guaranteed. ... All market oils (petrol engine or diesel, mineral or synthetic) are mixable. However, a blending of two oil qualities lower the superior quality.
Is it bad to mix two different oils?
Even if two different brands of oil have the same viscosity, you still should not be mixing them together. ... Technically, using a grade of oil that's recommended by your car manufacturer is correct. However, if you combine two different brands of motor oil, you could be at risk of damage.Sep 21, 2019
Can you mix different oil brands?
Yes, you can safely mix one brand of oil (e.g. Mobil 1) with a different brand (e.g. AMSOIL) or conventional oil with synthetic oil (in fact, that's what a synthetic blend is). Most synthetics today are fully compatible with conventional oils and can safely be mixed.
Is it OK to mix synthetic oil brands?
Yes, you can safely mix one brand of oil (e.g. Mobil 1) with a different brand (e.g. AMSOIL) or conventional oil with synthetic oil (in fact, that's what a synthetic blend is). Most synthetics today are fully compatible with conventional oils and can safely be mixed.
Can I top off oil with different brand?
Can I mix different brands of car engine oil? ... So to answer the question, you want to avoid mixing and topping up car oils from different brands or manufacturers should be avoided, even if the API assures they are compatible.Jun 2, 2021