May 26, 2026
Wayne, Gilbarco and Tokheim against E10: compatibility table by brand for stations in Panama
By Frederick M. Roberts Vence
Technical Lead · 15+ years of experience
At most Panamanian stations, the dispenser is one of three brands: Wayne, Gilbarco or Tokheim. When evaluating the transition to E10, the operational question is not generic: it is "does my brand and pump generation handle ethanol, or do I need a retrofit?". The answer changes by manufacturer and, within each manufacturer, by model line and year.
This is the comparative table for the three brands. For the model-by-model detail on Wayne there is already a [dedicated Wayne compatibility guide](https://masterservices.org/blog/bombas-wayne-compatibilidad-e10-panama/); here the goal is for you to locate your equipment among the three brands and understand what they have in common before requesting a diagnosis. The regulatory context — that E10 is currently [paused after the suspension of Bill 443](https://masterservices.org/blog/suspension-proyecto-ley-443-bioetanol-panama/), a suspended draft bill not yet enacted — means this is preparation, not urgency: the time to know what you have is now, before the clock starts running for all stations at once.
Why ethanol forces a dispenser review
E10 (10% ethanol, 90% gasoline) attacks two things that pure gasoline does not:
- Elastomeric materials: ethanol degrades seals, O-rings and diaphragms made of nitrile (Buna-N/NBR) and natural rubber. The materials that resist are Viton (FKM), PTFE (Teflon) and modern derivatives.
- Water: ethanol is hygroscopic: it absorbs moisture. A dispenser and a tank that coexist with some water without problems on pure gasoline can suffer phase separation with E10, where the ethanol and water separate into a corrosive bottom layer. That is why the transition to E10 and [tightness testing](https://masterservices.org/blog/pruebas-hermeticidad-sne-panama/) are linked.
A dispenser's compatibility with E10 depends, then, on three zones: the meter (volumetric meter, with its internal seals), the external hoses and nozzles, and the filters. The first two depend on the brand and generation; the filters are changed the same way on all of them.
Comparative table: E10-ready generations vs. retrofit
| Brand | Factory E10-ready line | Line requiring evaluation / retrofit | Old line: evaluate replacement |
|---|---|---|---|
| Wayne | Helix (post-2015) | Ovation (2000–2015) | Old 2400, Vista (pre-2000) |
| Gilbarco | Encore 700 S and recent generations | Early Encore / Advantage | The Highline and legacy lines (pre-2000) |
| Tokheim | Recent Quantium (500/700) | Premier / early Quantium | Legacy Tokheim, old series |
The lines and year cutoffs are industry references to guide the diagnosis, not a certificate per unit. Real compatibility is confirmed against the manufacturer's documentation and physical inspection of the meter. The same model can have different configurations depending on the year and the import market.
Wayne
The four Wayne lines most seen in Panama are Vista, 2400, Ovation and Helix. The Helix (post-2015) comes E10-ready from the factory: Viton seals and stock hoses typically UL 330. The modern Ovation is usually compatible, but early versions may have NBR at critical points of the meter. The 2400 is the classic retrofit case (Buna-N seals + hoses probably UL 6). The pre-2000 Vista is usually at the end of its service life: the retrofit rarely pays off versus replacement.
The breakdown by model, retrofit kit and decision criteria is in the [Wayne pumps and E10 guide](https://masterservices.org/blog/bombas-wayne-compatibilidad-e10-panama/).
Gilbarco
Gilbarco is, together with Wayne, one of the dominant brands in the Panamanian market. The relevant generations:
- Encore (recent generation, 500S / 700S / 900S platforms): designed for ethanol-blended fuels, with alcohol-resistant internal materials. Typical action: check hoses and filters, no meter retrofit.
- Early Encore and Advantage: transition generation. They may carry a mix of materials depending on the year; they require meter inspection to identify elastomers before loading E10.
- Legacy lines (The Highline and earlier): old equipment with nitrile or rubber elastomers; same criterion as a Wayne 2400/Vista: evaluate full retrofit vs. replacement according to remaining service life.
On all Gilbarcos that require meter intervention, the same applies as for any brand: after opening the meter you must recalibrate (see below).
Tokheim
Tokheim is the third common brand. Its modern Quantium line (500/700) in recent versions is built for oxygenated fuels; the Premier and early Quantium models are the evaluation zone, and the old legacy series fall into the category of exhaustive retrofit or replacement. As with Gilbarco, the exact cutoff by year and submodel is confirmed with the manufacturer's documentation and inspection, not by the line label.
What is the same across the three brands
Regardless of brand, there are components treated the same way in the transition to E10:
Hoses. This is the point that fails fastest. A hose without a UL 330 marking (ethanol blends; its extension UL 330A covers specific constructions for alcohols) exposed to E10 swells internally (flow drops), cracks in the cover and releases particles that clog filters. Marked only "UL 6" or without a UL marking = change before the transition.
Filters. Mandatory change, not optional. Ethanol dissolves old deposits from the tank and line, which load the filter faster during the initial conversion. Recommended: a filter with water-phase detection (e.g. Cim-Tek 200E10) or equivalent, before the first E10 load. Afterward, change when flow drops below ~1 gpm (a sign of a filter saturated by water or a separated phase), upon any change of formulation, or on an indicative schedule (~6 months or ~500,000 gallons), more frequently in the first weeks of the conversion.
Nozzles and breakaways. Old automatic nozzles without an alcohol marking must be replaced. The breakaway (disconnect valve) must be E10-compatible.
Recalibration after touching the meter. Any retrofit that opens the volumetric meter requires, by metrological regulation, a new [dispenser calibration with ACODECO](https://masterservices.org/blog/calibracion-dispensadores-combustible-panama/) and the resealing of the calibration screw. Without that, the dispenser is technically repaired but legally out of service.
How to decide: retrofit or replacement
The criterion is not the brand: it is the remaining service life of the dispenser against the cost of adapting it:
| Situation | General recommendation |
|---|---|
| E10-ready generation (Helix, Encore 700 S, recent Quantium) | Only new hoses + filters |
| Transition generation in good condition | Selective seal retrofit + hoses |
| Old equipment, functional, with years ahead | Full retrofit (kit + hoses + filters + nozzle) |
| Old equipment with prior failures or 25+ years | Evaluate replacement: the retrofit does not extend service life much |
The firm number — what the retrofit costs per dispenser vs. replacement — comes from a per-unit diagnosis, not from a table. What the table gives you is knowing which box you fall into before requesting a quote.
Subsequent verification, the same for all three
After adapting a dispenser, three steps close the legal and technical cycle:
- Calibration with a certified 5-gallon prover: [ACODECO calibration](https://masterservices.org/blog/calibracion-dispensadores-combustible-panama/).
- Focused tightness test on the dispenser sump: [tightness testing](https://masterservices.org/blog/pruebas-hermeticidad-sne-panama/).
- Resealing of the calibration screw with traceable lead.
Frequently asked questions
How do I know which brand and model I have? The dispenser nameplate shows brand and model; the year and the internal configuration (meter materials) require physical inspection. Do not assume compatibility from the brand: within the same line there are different configurations by year.
Can I mix brands at the same station? Yes, it is common to have Wayne and Gilbarco on the same island. The diagnosis is done per dispenser, not per station.
What happens if I load E10 without checking? Progressive failure: first clogged filters and low flow, then swollen hoses and compromised seals, and if there is water in the tank, phase separation. The order and speed depend on the condition of each unit.
Do the manufacturers sell kits in Panama? Retrofit kits are imported through authorized distributors; the delivery time depends on availability. It is best to have the diagnosis done so you do not start from scratch when E10 has a date.
Next step
If you want to know exactly which box of this table your station falls into — which brand, which generation and what applies per dispenser — the prudent move is an on-site diagnosis before buying parts. Master Services identifies the brand, model and internal materials of Wayne, Gilbarco and Tokheim, and delivers a firm retrofit-vs-replacement criterion per unit.
[Request an E10 compatibility diagnosis →](https://masterservices.org/contacto/)
*The technical specifications mentioned (model lines, UL 330 / Viton materials, generational cutoffs) correspond to indicative industry references. Per-unit compatibility is confirmed with the manufacturer's documentation and physical inspection; costs and timelines require a quote per dispenser.*