The Oil Alchemist 5W-40 vs 5W-30 – Transforming Engine Lubrication

Add to Basket. GTX 5W-30 C4 1L · CASTROL - GTX 5W-30 C4 1L. Part: CAS15F64C. check circle. In Stock. Map. Check Stock. Fitment Info. If you look at an engine oil label, you will notice a combination of letters and numbers – but what does 5W-30 (for example) mean? There's probably not a great deal of difference between the 5w30 and 5w40. Most TDI owners in North America are using synthetic 5w40 oils. So, a SAE 5W-30 oil would be SAE 5 without the VI improver, SAE 10W-30 would be SAE 10 without it, etc. IN THEORY! In fact, since the two ... Summary of 5w30 Vs. 5w40 · 5w30 oil is designed to operate at temperatures as low as -25°C, but is also a great choice for warmer climates that ... The engine is much smoother, quieter and generally just sounds a lot less metallic that it did before. Overall, I'm very impressed and I will be filling up ... In the case of this liquid Molly, it's 5 W 40. The 5 is viscosity at cold temperature, which is what the W means, and 40 is viscosity at warm ... The FlexSolar 40W features six panels that fold up quickly and easily. Credit: Sam Schild. Ultra Portable Solar Charger. Goal Zero Nomad 5. Thought I would share my recent experience of switching engine oil to more viscous 5w40 from 5w30. Car is Fabia VRS 130 PD using 505.01 PD ... Direct injection/turbo w gas dilution is the reason to change every 6 months especially running 0-20. Makes it even thinner.