NL4522 - Automotive SAE J30R9 Fuel Injection Line. ... Its tube is resistant to additives (gasoline, Ethanol blends, diesel, biodiesel. lubrication oils, oxidized sour gas) and its cover is resistant to abrasion, oil, coolants, and weathering. This hose meets SAE J30R9 specifications. For retail display, this hose comes in 25' dispensing reels.