
Ryco Filters · Part number R2383P · NZ$24.00 incl. GST
Right then, for those hard-working commercial beasts like your Isuzu Elf light truck, and even those classic European beauties such as the BMW 3 Series 318is, oil filters are a non-negotiable bit of kit for engine protection, snagging all those nasty contaminants before they start chewing up your bearings, pistons, and camshafts. Our RYCO option is a real Kiwi favourite, made in Aussie and trusted by us.
NZ$24.00 including GST. Part number R2383P.
Keep Your Engine Humming: The Lowdown on Oil Filters (Feat. RYCO) — Bob's Guide
> Righto, let's talk oil filters. These clever little buggers use a pleated cellulose or synthetic filter inside to nab all the metal bits, carbon gunk, and sludge floating around in your engine oil. Over time, that filter gets packed out, and then a bypass valve opens up, letting all that unfiltered crud flow straight through your engine — which, let's be honest, is a recipe for engine wear. Whether you're running a commercial workhorse like the Isuzu Elf or a precision-engineered classic like the BMW 318is, keeping that oil clean is absolutely crucial for a long, happy life on the road.
Symptoms That Led You Here
• Engine oil appears darker than usual well before service interval
• Oil pressure warning light flickering at idle
• Increased engine noise, particularly tappet or lifter tick
• Reduced fuel economy without obvious cause
• Visible metallic particles on dipstick or drain plug magnet
Will it pass WOF?
While oil filters aren't directly inspected during a NZ Warrant of Fitness, a neglected filter can cause oil leaks from excessive pressure or contribute to engine failures that create visible smoke emissions—both of which will fail a WOF. Keeping your filter fresh ensures your vehicle remains compliant and roadworthy.
DIY or Workshop?
Difficulty: 3/10 | Time: 20-40 minutes | Tools: Oil filter wrench, drain pan, correct replacement oil, rags
Most Isuzu Elf variants and BMW E30 318is models position the oil filter accessibly from underneath. The Elf's commercial design prioritises serviceability, while the BMW requires slightly more finesse around the subframe. Warm the engine first to ensure complete oil drainage.
Expert Recommendation
Bob and the CARFIX team recommend replacing your oil filter at every oil change interval—typically 10,000-15,000km for these older vehicles, or annually if driven less frequently. The Isuzu Elf's diesel variants and the BMW's M40 petrol engine both benefit enormously from quality filtration, especially given NZ's dusty rural roads and stop-start urban delivery routes. Bob @ CARFIX is always on hand to help you work out exactly what part you need for your Isuzu Elf or classic BMW. Make sure you head over to Bob's Shop for a chat!
Fitment Notes
• Covers multiple Isuzu Elf generations from 1970-1986—verify your specific engine code as variants exist
• BMW 318is E30 (1989-1991) with M42 engine confirmed; earlier 318i models may differ
• Thread size and gasket diameter must match precisely—cross-reference before purchase
• Some Elf diesel variants may require additional sealing washers not included
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🛠️ Bob's Pro Tip: Do the Job Right!
🧰 What Else You'll Need:
• Clean Workspace: Lay down an oil drip tray and microfibre towels under the oil drain plug.
• Gasket Inspection: Double check that the old oil filter's rubber O-ring came off with the filter, and pre-lube the new filter gasket with fresh oil before mounting.
• Clean Hands: Protect your hands from used engine oil with Nitrile Gloves.