Parts for your 2008 Honda Stream-Oil pump

2008 Honda Stream oil pump: what it does and when to service it

Based on Honda’s own workshop literature and parts catalogues for the RN6–RN9 Honda Stream (2006–2014) fitted with the R18A 1.8‑litre and R20A 2.0‑litre SOHC i‑VTEC engines, this 2008 model absolutely uses an engine oil pump. The technical sources specify a crankshaft‑driven, internal trochoid‑type pump mounted in the lower block/oil pan area, with a pickup screen and pressure relief valve. In other words, the oil-pump is relevant and fitted on every 2008 Honda Stream.

That oil-pump is the heart of the lubrication system. It pressurises and circulates engine oil to bearings, cam journals, the timing chain and tensioner, VTC components and piston cooling passages, keeping friction in check and temperatures under control. On cold starts, steady pressure helps prevent metal‑to‑metal contact, at highway revs, it maintains a stable oil film so the Stream’s inline‑four runs smoothly for hundreds of thousands of kilometres.

While the oil-pump itself isn’t a routine replacement item, its health lives and dies on regular servicing. Clean, correctly‑rated oil and a quality filter protect the pump’s rotors and the relief valve from wear or sludge. For Australian and New Zealand conditions, a premium 5W‑30 meeting the manufacturer’s spec is the safe bet year‑round, in hotter regions, 10W‑30 can also be appropriate. Sticking to timely oil and filter changes is the single best way to keep the 2008‑Honda‑Stream oil-pump happy.

• Common warning signs of oil-pump or lubrication trouble:
  • Red oil pressure lamp flickering at idle or staying on after start
  • Top‑end ticking, chain rattle on cold starts, or bottom‑end rumble
  • Metallic glitter in drained oil or a clogged pickup screen
  • Consistently low oil pressure readings during diagnosis

Replacement is considered when confirmed low oil pressure isn’t due to thin/old oil, a dodgy sensor, a blocked filter, or worn bearings. It’s also sensible during high‑kilometre rebuilds, after sludge contamination, or whenever the sump is off for major sealing or timing work. A proper job on a 2008 Honda Stream includes inspecting or replacing the pickup strainer, O‑rings and seals, checking the relief valve for sticking, cleaning the pan, and priming the pump before first start. Correct torque on fasteners and a fresh gasket/sealant for the sump and front cover help prevent air leaks that can cause pressure loss.

Owners who keep oil at the right level, use the correct viscosity, and follow service intervals usually never need to think about the oil-pump—and that’s exactly how it should be.

Popular questions about 2008 Honda Stream oil-pumps

Does the 2008 Honda Stream have an oil pump and where is it located?
The 2008 Stream does have an oil pump. It’s an internal, crankshaft‑driven trochoid pump that sits in the lower section of the engine, drawing oil through a pickup in the sump. Access typically requires removing the sump and, depending on engine and procedure, the front cover.

When should the oil-pump be replaced on a 2008 Honda Stream?
There’s no scheduled interval. It’s replaced when diagnostics confirm low oil pressure from pump wear or damage, during engine overhauls, or if contamination (sludge/metal) is found. Most issues blamed on the pump turn out to be oil quality, level, filter, sensor, or bearing wear, so proper testing comes first.

What maintenance keeps the oil-pump in good nick?
Use the specified viscosity oil and a quality filter, change them on time, and keep the oil level between the marks. If the sump is off for other work, have the pickup screen and O‑rings inspected. Avoid extended drains and cheap filters, as they’re rough on the pump and the rest of the engine.