Champion 100538 7500W Open Frame oil type and capacity, spark plug and battery
GarageDex's data from Champion's own published specs: the Champion 100538 7500W Open Frame takes 10W-30 oil (1.2 qt (1.1 L)) and an NHSP F6RTC (OEM); NGK BPR6ES or equivalent spark plug gapped 0.024-0.031 in (0.6-0.8 mm). It is rated 7,500 running watts and 9,375 starting watts.
Shop 10W-30 oil The spec in the Champion 100538 7500W Open Frame manual
Key takeaways
- Oil capacity: 1.2 qt (1.1 L). Add it in stages and stop at the dipstick's full mark rather than pouring the whole amount at once.
- Spark plug: NHSP F6RTC (OEM); NGK BPR6ES or equivalent, gap 0.024-0.031 in (0.6-0.8 mm).
- Every value on this page is quoted from Champion's own manual or spec page, linked beside it.
| Item | Spec | From the manual |
|---|---|---|
| Engine oil | SAE 10W-30other grades per temperature chart in manual | “The recommended oil type is 10W-30 automotive oil” source |
| Oil capacity | 1.2 qt (1.1 L) | “Capacity ............................................ 1.2 qt. (1.1 L)” source |
| Spark plug | NHSP F6RTC (OEM); NGK BPR6ES or equivalent | “OEM Type ........................................... NHSP F6RTC” source |
| Spark plug gap | 0.024-0.031 in (0.6-0.8 mm) | “Gap ............................... 0.024-0.031 in. (0.6-0.8 mm)” source |
| Starter battery | 12V 14Ah (parts list)Battery listed in the manual parts list, part number 100021409 | “36 100021409 Battery, 12V 14Ah” source |
| Fuel tank | 5.7 gal (21.5 L) | “Gasoline Capacity ............................... 5.7 gal. (21.5 L)” source |
| First oil change | change oil after first 5 hours | “After the 5 hour break-in period, change the oil.” source |
Parts for the Champion 100538 7500W Open Frame
Each Buy button searches Amazon for the exact spec in the manual.
- Engine oil10W-30, 1.2 qt (1.1 L)Buy
- Spark plugNHSP F6RTC (OEM); NGK BPR6ES or equivalentBuy
- Starter battery12V 14Ah (parts list)Buy
As an Amazon Associate we earn from qualifying purchases, at no extra cost to you.
Other Champion generators
100692 2000W Inverter100263 3400W Dual Fuel Inverter100155 9000W Dual Fuel Open Frame100524 3500W Dual Fuel100264 3500W Dual Fuel Inverter200961 2500W Dual Fuel Inverter200988 4500W Dual Fuel Inverter
Source: Champion 100538 Operator's Manual (PDF). If your unit's own manual or label differs, follow it.