Just bought a used skoda with 61,000 miles. (auto)
Previous records show its been using mostly Castrol 10w40 semi.
Full service after I bought it they used 10w40 Quantum semi.
Motul suggest using a synthetic X-cess 5w40.
I am a bit wary about changing from semi to synth. Not usually a good idea.
Should I stick with the semi or can change to the synth? Price is not an issue. Just want what is best for the engine.
Previous records show its been using mostly Castrol 10w40 semi.
Full service after I bought it they used 10w40 Quantum semi.
Motul suggest using a synthetic X-cess 5w40.
I am a bit wary about changing from semi to synth. Not usually a good idea.
Should I stick with the semi or can change to the synth? Price is not an issue. Just want what is best for the engine.