Dibenzyl toluene is a promising liquid organic hydrogen carrier (LOHC), which can be applied in chemical energy storage through reversible hydrogenation. As nowadays hydrogen is primarily produced through methane steam reforming, coproducts such as carbon dioxide, nitrogen, and methane can be present in significant amounts in the gas stream. Taking this mixed gas stream to hydrogenate the LOHC material is one possible scenario. Besides that of hydrogen the physical solubility of these coproduct gases is of high relevance for process development. In this work the solubility of CO2, N-2, and CH4 is measured in both hydrogenated and dehydrogenated form of the LOHC material using the static isochoric saturation method. All measurements were performed at pressures up to 8 bar and within the temperature range of 310 to 390 K. In both solvents, dibenzyl toluene and its hydrogenated derivative, carbon dioxide gas has the highest solubility followed by methane and nitrogen, which has by far the lowest gas solubility.