Honda GCV190 oil type and capacity and spark plug
GarageDex's data from Honda's own published specs: the Honda GCV190 takes 10W-30 oil (17 oz (0.50 L) dry engine, about 0.53 US qt) and an NGK BPR5ES spark plug gapped 0.028-0.030 in (0.70-0.80 mm).
Shop 10W-30 oil The spec in the Honda GCV190 manual
Key takeaways
- Oil capacity: 17 oz (0.50 L) dry engine, about 0.53 US qt. Add it in stages and stop at the dipstick's full mark rather than pouring the whole amount at once.
- Spark plug: NGK BPR5ES, gap 0.028-0.030 in (0.70-0.80 mm).
- Every value on this page is quoted from Honda's own manual or spec page, linked beside it.
| Item | Spec | From the manual |
|---|---|---|
| Engine oil | SAE 10W-30API SJ or later, for general use | “Engine Oil Type SAE 10W-30, API SJ or later, for general” source |
| Oil capacity | 17 oz (0.50 L) dry engine, about 0.53 US qt | “Oil capacity Dry engine: 17 oz (0.50 L)” source |
| Spark plug | NGK BPR5ESBPR6ES for pressure washer applications, BPR5ES for all other applications | “BPR6ES (NGK) (pressure washer types) BPR5ES (NGK) (all other applications)” source |
| Spark plug gap | 0.028-0.030 in (0.70-0.80 mm) | “Spark plug gap 0.028 ~ 0.030 in (0.70 ~ 0.80 mm)” source |
| Fuel | unleaded, pump octane 86 or higher | “Unleaded gasoline with a pump octane rating of 86 or higher” source |
Parts for the Honda GCV190
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Other Honda small engines
Source: Honda GCV160 / GCV190 Owner's Manual (PDF). If your unit's own manual or label differs, follow it.