Yeah be fine, but 5w30 is a bit thin imo for a car that age. Honda's of a similar vintage and newer were 10w40
Think 5w30 might be too thin and be used by the car engine.
5w30 and 10w30 will have the same viscosity when at operating temperature.
The only difference (5w vs 10w) is the low temperature viscosity. Highly doubtful that will make a material difference.
Oh and to the original question all oil viscosities can be combined if necessary.
@tertius started
London Fixed Gear and Single-Speed is a community of predominantly fixed gear and single-speed cyclists in and around London, UK.
This site is supported almost exclusively by donations. Please consider donating a small amount regularly.
Yeah be fine, but 5w30 is a bit thin imo for a car that age. Honda's of a similar vintage and newer were 10w40
Think 5w30 might be too thin and be used by the car engine.