1999 Lexus RX 300 Oil Type & Capacity: 5W-30 (5.0 quarts)
The 1999 Lexus RX 300 takes 5W-30 motor oil — 5.0 quarts with a filter change, per the factory service manual.
Factory-spec answer
5W-30 — 5.0 quarts with filter
Oil capacity by engine
| Engine | Oil Type (viscosity) | Capacity w/ Filter | Capacity w/o Filter | Notes |
|---|---|---|---|---|
| AWD | API - SAE 5W-30 | 5.00 QTS. | 4.80 QTS. | API - SL "Energy-Conserving" or ILSAC multigrade engine oil. |
| FWD | API - SAE 5W-30 | 5.00 QTS. | 4.80 QTS. | API - SL "Energy-Conserving" or ILSAC multigrade engine oil. |
More factory specs & repair guides for your RX 300
🛞 1999 Lexus RX 300 Tire Size & Pressure →🌧️ 1999 Lexus RX 300 Wiper Blade Sizes →💡 1999 Lexus RX 300 Light Bulb Sizes →📖 1999 Lexus RX 300 Factory Service Manual →All fluid capacities (transmission, coolant, brakes)Powered by factory manual data from our partner network AllOEMManuals.com.
Coolant capacity
9.5 quarts (8.99 L) — TOYOTA Long Life Coolant or equivalent. DO NOT use alcohol type antifreeze or plain water alone.
Frequently asked questions
What type of oil does a 1999 Lexus RX 300 take?
The 1999 Lexus RX 300 takes 5W-30 motor oil (API - SAE 5W-30), per the factory service manual.
What is the oil capacity of a 1999 Lexus RX 300?
The 1999 Lexus RX 300 oil capacity is 5.0 quarts with a filter change, or 4.8 quarts without changing the filter.
How often should I change the oil in my 1999 Lexus RX 300?
Most 1999 Lexus RX 300 owners follow a 5,000–7,500 mile interval with conventional oil, or up to 10,000 miles with full synthetic. Always check the oil life monitor if equipped, and consult your owner's manual — Lexus recommends intervals based on driving conditions, not just mileage.
Can I use synthetic oil in my 1999 Lexus RX 300?
Yes. 5W-30 is widely available as a full synthetic, and synthetic is safe (often recommended) for the 1999 Lexus RX 300. What matters most is matching the factory viscosity and specification, then changing the oil and filter on schedule.