2008 Honda Accord Oil Type | 5W-20 Specs & Capacity

The 2008 Honda Accord needs 5W-20 oil with API certification for both engine options, with capacities from 4.2 to 4.7 quarts.

Getting the oil right in your 2008 Honda Accord is straightforward — use 5W-20 regardless of whether you have the 2.4L four-cylinder or the 3.5L V6. Honda specifies this viscosity for all engine variants in this generation, and it works across all temperatures. The oil must carry API certification, and either conventional or synthetic 5W-20 is acceptable. If you are shopping for supplies, our tested picks for the best 2008 Accord oil can help you grab the right bottle on the first try.

Oil Type And Capacity For The 2008 Honda Accord

The 2008 Accord came with two engine options, and each has slightly different oil capacities. The 2.4L four-cylinder (engine code K24Z2) takes 4.2 quarts without a filter change and 4.4 quarts with one. The 3.5L V6 (engine code J35A7) takes about 4.5 quarts without a filter and 4.7 quarts with one. A single 5-quart bottle covers either engine with room to spare.

How To Change The Oil In A 2008 Honda Accord

The process takes about 30 minutes and basic tools. Warm the engine for 3–5 minutes so the oil drains faster, then lift the car using ramps or jack stands — never rely on a jack alone. Locate the 17 mm drain plug under the oil pan, remove it, and let the old oil drain completely. Replace the oil filter while you are underneath, lubricating the new filter’s gasket with a thin layer of fresh oil before hand-tightening it. Tighten the drain plug about an eighth to a third of a turn past hand-tight — overtightening can strip the pan. Fill the engine with 4.1–4.2 quarts of 5W-20, run it for 30 seconds, then check the dipstick and top off as needed. Reset the maintenance minder when you are done.

Common Oil Change Mistakes To Avoid

A few errors show up often. Using 5W-30 instead of the specified 5W-20 is the most common — Honda engineered this engine for 5W-20, and thicker oil can hurt fuel economy and cold-start flow. Overfilling is another easy mistake; the dipstick reading matters more than the bottle count. Always lubricate the filter gasket before installation — a dry gasket can seize or leak. And overtightening the drain plug risks stripping threads that require a costly repair. Stick to the spec, take your time, and the job goes smoothly.

FAQs

Can I use synthetic oil in my 2008 Honda Accord?

Yes. 5W-20 synthetic is fully compatible and acceptable. Honda does not require synthetic, but it offers better high-temperature stability and can support longer intervals if your oil brand allows extended drain schedules.

How often should I change the oil in a 2008 Honda Accord?

Honda’s maintenance minder system alerts you when an oil change is due, typically every 5,000 to 7,500 miles depending on driving conditions. Conventional oil may need changes closer to 3,000–5,000 miles; synthetic can stretch further.

What happens if I use 5W-30 instead of 5W-20?

Using 5W-30 is not recommended. The engine was designed around 5W-20’s viscosity, and thicker oil can reduce fuel economy, slow cold-start circulation, and increase engine wear over time. Stick with the OEM specification.