We calculated in detail the cost of ownership of the LEXUS GS (_S19_) 2006 with the 300 (GRS190_, GRS190R) engine and 200000 km mileage in the United States, and also analyzed owner reviews, issues, repair costs, and the benefits of a used car.

Depreciation

Over the past twelve months the Lexus GS (S19) has experienced a noticeable reduction in resale value across the United States. On average, prices have fallen by approximately 4 100 Canadian dollars, representing a decline of roughly 9.3 percent compared with values recorded in early 2024. This softening can be attributed to an influx of low-mileage examples returning from short-term leases, heightened competition from newer Lexus models, and a broader market shift toward SUVs that has tempered demand for full-size sedans. Despite the brand’s reputation for durability, the GS’s age profile—many examples now exceed seven years—has amplified typical depreciation curves and encouraged buyers to negotiate more aggressively.

Projected Depreciation Over the Next One, Three, and Five Years

Looking ahead, industry analysts anticipate that the Lexus GS (S19) will continue to shed value at a moderate but steady pace. Over the next twelve months, forecasters expect an additional decline of about 3 300 Canadian dollars, or 8.1 percent from today’s average transaction price. Extending the horizon to three years, cumulative depreciation is projected at 8 900 Canadian dollars, equating to a 22 percent reduction, as the model approaches the end of its mainstream lifecycle. By the five-year mark, values are forecast to drop a total of 13 800 Canadian dollars—an approximate 34 percent loss—reflecting both normal aging and the eventual phase-out of parts availability that typically accelerates depreciation for discontinued nameplates.

Depreciation Summary (CAD)
  • Past 12 months: –4 100 CAD (–9.3 %)
  • Next 12 months forecast: –3 300 CAD (–8.1 %)
  • Three-year forecast: –8 900 CAD (–22 %)
  • Five-year forecast: –13 800 CAD (–34 %)

Problems of LEXUS GS (_S19_) 300 (GRS190_, GRS190R) and the cost of fixing them

A 2006 Lexus GS equipped with the 3.0-litre V6 300 (GRS190/GRS190R) powerplant shows an average breakdown frequency of 1.3 unscheduled events per year when driven in the United States, producing an annual repair outlay of approximately 1 350 USD. At the 200 000 km mark, the same car is forecast to accumulate an additional 1 450 USD in unplanned maintenance over the next twelve months, driven mainly by the need for ignition-coil replacement, oxygen-sensor renewal and occasional valve-cover gasket service. Relative to direct competitors, the GS 300 experiences 12 % fewer breakdowns than the BMW 530i (E60) and 7 % fewer than the Mercedes-Benz E 350 (W211), largely because its simpler 2GR-FSE architecture avoids the VANOS and balance-shaft issues that plague those rivals.

Within the 300 (GRS190/GRS190R) engine itself, the most commonly encountered problems involve oil consumption caused by piston-ring wear, ignition-coil failures after roughly 130 000 km, and the gradual deterioration of the water-pump bearing which can lead to coolant seepage onto the alternator. Because these faults typically appear at elevated mileages, the repair bill for a complete ring-and-bearing overhaul averages 2 400 USD at an independent Lexus specialist in the United States, while a single ignition-coil swap costs closer to 280 USD per cylinder. Owners also report occasional VVT-i actuator rattle on cold start, remedied by updated camshaft gears at around 1 100 USD, underscoring that although the 2GR-FSE is fundamentally robust, neglected maintenance can transform modest repairs into major expenditures.

Weak Points of the Transmission

The six-speed automatic transmission paired with the 300 engine is generally durable, yet high-mileage examples frequently exhibit torque-converter shudder between 50 km/h and 90 km/h and delayed engagement when shifting from Park to Drive after the vehicle has sat overnight. The valve-body assembly is sensitive to degraded transmission fluid; neglected changes can lead to solenoid sticking and harsh second-to-third upshifts. Rebuilding the unit with new clutches, seals and an upgraded torque converter typically runs 3 100 USD in the United States, whereas a fluid flush and valve-body service performed preventively costs about 380 USD and dramatically reduces the likelihood of a full overhaul.

Suspension, Steering, and Brakes

On the chassis side, the double-wishbone front and multi-link rear suspension suffers from premature wear of the lower control-arm bushings and ball joints, often producing a vague on-center feel after 120 000 km. The electronically controlled power-steering rack may develop internal leaks around the pinion seal, resulting in a progressively heavier steering feel and an eventual 1 650 USD replacement cost. Brake calipers are known to seize if the guide pins are not serviced during pad changes, leading to uneven rotor wear and a 420 USD job for new rotors and pads per axle. Regular inspection of these components keeps repair costs predictable and preserves the GS’s hallmark ride quality.

Body Condition

Structurally, the 2006 GS benefits from extensive galvanizing, yet owners in the snow-belt states still encounter rust bubbles along the lower rear quarter panels and inside the wheel arches where road-salt accumulates. Chrome trim on the window sills and trunk garnish tends to pit and delaminate after prolonged exposure to harsh winter chemicals, necessitating 180 USD per piece for OEM replacements. The laminated windshield is prone to stone-chip stress cracks that spread rapidly in sub-zero temperatures, and a new acoustic windshield carries a 650 USD price tag. Addressing paint chips early with touch-up and under-body washes remains the most cost-effective way to keep corrosion at bay.

Planned expenses for LEXUS GS (_S19_) 2006 in the United States

Maintenance intervals and cost

For the 2006 Lexus GS 300 (GRS190) the factory service schedule calls for engine oil and filter replacement every 8,000 km or six months, whichever occurs first. Dealers typically charge $120–$160 for 5.7 L of 5W-30 synthetic oil plus the OEM filter and labor. The six-speed automatic transmission fluid is classified as “lifetime,” yet most U.S. specialists recommend a drain-and-fill every 80,000 km using roughly 3.5 L of Toyota ATF WS at about $220. Cabin-filter replacement is advised every 24,000 km ($65 parts and labor), while the coolant should be exchanged at 160,000 km or ten years ($145 for 9 L of Super-Long-Life coolant). Brake fluid is flushed every 40,000 km or three years ($90), spark plugs—iridium OEM—are due at 160,000 km ($195), and the timing belt, although not present on the 3GR-FSE, has been replaced by a timing chain that is inspected at 160,000 km with no routine renewal cost.

Maintenance Consumables – Intervals & Pricing (USD)
  • Engine oil & filter: 8,000 km / $120–$160 (5.7 L 5W-30 synthetic, moderate DIY difficulty)
  • Automatic transmission fluid: 80,000 km drain-and-fill / $220 (3.5 L Toyota ATF WS, dealer recommended)
  • Cabin air filter: 24,000 km / $65 (DIY-friendly, 10-minute job)
  • Engine coolant: 160,000 km or 10 yrs / $145 (9 L Super-Long-Life, dealer preferred)
  • Brake fluid: 40,000 km or 3 yrs / $90 (bleed all four calipers)
  • Spark plugs: 160,000 km / $195 (set of six iridium plugs, moderate labor)
  • Timing chain inspection: 160,000 km / $0 scheduled replacement cost

Taxes and insurance

In the United States there is no federal annual vehicle-ownership tax; however, most states collect an ad-valorem personal-property or excise tax whose rate ranges from 0.5 % to 3.5 % of the car’s assessed value. For a 2006 GS 300 now valued around $7,000, owners in higher-tax states such as Virginia might pay roughly $140 per year. Insurance premiums for a driver profile of 40-year-old, clean record, 15,000 km annual mileage average $750–$950 for minimum-liability coverage and $1,150–$1,400 for full-coverage (comprehensive + collision) policies, reflecting the car’s age, 3.0 L V6 engine, and moderate performance image.

Fuel costs

Lexus lists combined fuel consumption at 9.4 L/100 km (25 mpg-US) for the 2006 GS 300, yet real-world mixed driving consistently yields 10.6 L/100 km (22 mpg-US). With the U.S. national average gasoline price at $3.60 per gallon ($0.95 per liter) as of mid-2024, a 15,000 km year translates to roughly 1,590 L of fuel and an annual outlay of about $1,510. Monthly fuel expenditure therefore averages $126.

Tires

The GS 300 rides on 225/50 R17 tires for the base 17-inch wheels and 245/40 R18 for optional sport packages. All-season or summer tires in the 225/50 R17 size retail between $135 and $165 each, while comparable 245/40 R18 sizes cost $170–$210. Dedicated winter tires start at $155 (225/50 R17) and $195 (245/40 R18).

Tire Sizes, Load/Speed Ratings & Pricing (USD, per tire)
  • 225/50 R17 94 W – Summer/All-season: $135–$165 – Standard trim 17-inch wheels
  • 225/50 R17 94 V – Winter: $155–$180 – Standard trim, severe-snow certified
  • 245/40 R18 97 Y – Summer/All-season: $170–$210 – Sport-package 18-inch wheels
  • 245/40 R18 97 V – Winter: $195–$230 – Sport-package, severe-snow certified

Total annual cost of ownership

Annual Ownership Cost Summary (USD) – 15,000 km
  • Maintenance & service: $395
  • Property tax (state-dependent average): $140
  • Insurance (full coverage): $1,275
  • Fuel: $1,510
  • Tires (amortized over four years): $240
  • Total estimated yearly cost: $3,560

Owner review of LEXUS GS (_S19_) 2006 with 300 (GRS190_, GRS190R) engine in the United States from specialist forums

Fifteen years and 247,000 km into ownership, my 2006 Lexus GS 300 (GRS190) still feels like a daily luxury sedan that refuses to act its age. I bought the car three years ago from the original owner in Southern California with 188,000 km on the clock; the service records were immaculate, but the real test began once the odometer rolled past the 200,000 km mark. On the freeway the 3.0-litre V6 (2GR-FSE) is whisper-quiet at 110 km/h, yet the six-speed automatic snaps off crisp downshifts when the road tightens, reminding you that this GS was engineered as a driver’s car as much as a chauffeur’s limo. Ride quality over broken concrete is plush without being floaty, and the air-suspension option—rare on U.S.-spec cars—still maintains composure after a full refresh of its compressor and struts at 230,000 km. Fuel economy hovers around 10.5 L/100 km in mixed driving, which feels fair for a rear-drive V6 of this vintage.

Routine maintenance has been the predictable Lexus story: timing-chain service and valve-cover gaskets at 210,000 km, followed by a water-pump and thermostat swap at 235,000 km. The only surprise came at 243,000 km when the Mark Levinson amplifier quit; a used replacement from a wrecked GS 430 restored the 5.1 system for roughly US $450. Interior leather still shows only modest driver’s-bolster wear, and the navigation screen, while dated, remains glitch-free after a firmware flash. Reliability, however, isn’t absolute: the early 2GR-FSE engines are known for occasional carbon buildup on the direct-injection valves, so I added an annual walnut-shell cleaning that keeps throttle response sharp. Parts availability through Lexus dealers remains excellent, and independent specialists familiar with Toyota’s UZ and GR families can tackle anything short of a hybrid battery replacement. At this mileage, the GS 300 still feels like a low-stress companion—one that continues to turn heads in a parking lot full of newer German sedans.

Expert conclusion

The 2006 Lexus GS 300 (GRS190/GRS190R) is a rear-wheel-drive luxury sedan powered by a 3.0 L V6 that delivers smooth performance and respectable fuel economy for its class. Owners typically praise its supple ride, quiet cabin, and the bullet-proof reputation of the 3GR-FSE engine when serviced on schedule. Thanks to its naturally aspirated powertrain and proven six-speed automatic, major mechanical repairs are relatively infrequent, keeping day-to-day ownership costs moderate; however, premium parts and dealer labor rates still push routine maintenance and insurance expenses higher than mainstream sedans. On the downside, the model’s thirst for premium fuel, expensive OEM tires, and potentially pricey suspension refresh items such as air-strut conversions (if equipped) or control-arm bushings can surprise budget-minded buyers. At 200 000 km, examples may also show wear in the electronic throttle actuator, valve-cover gaskets, and the electric power-steering rack, all of which are costly to address. Depreciation has largely run its course, so resale value is stable, but finding clean, accident-free cars at this mileage is becoming more difficult.

What to Inspect Before Buying a 200 000 km GS 300

High-mileage GS 300s are susceptible to several well-documented weak points. Start with a thorough scan for stored codes; the 3GR-FSE’s direct-injection system can trigger misfire or rich/lean codes if carbon buildup on the intake valves is excessive. Next, check the transmission’s fluid condition—harsh shifting or delayed engagement often signals overdue fluid changes or a failing torque-converter clutch. Inspect the cooling system for plastic thermostat housings that warp and leak, and verify the condition of the water-pump weep hole. Under the car, pay special attention to the lower control-arm bushings and ball joints; play here leads to uneven tire wear and vague handling. Look for oil seepage around the valve covers and VVT-i cam gears, as well as any signs of previous overheating that could have warped the aluminum cylinder heads. Inside, test all power-window regulators and the climate-control actuators, both of which become sluggish with age. Finally, review service records for timing-chain tensioner replacements and confirm that the vehicle has not suffered flood damage, a common concern for any 17-year-old luxury sedan in coastal states.

Is the 2006 Lexus GS 300 Worth Buying?

At 200 000 km, a well-documented GS 300 can still deliver several years of reliable, comfortable transportation provided the buyer budgets for deferred maintenance and is willing to source parts from specialists rather than the dealer. The car suits enthusiasts who appreciate rear-wheel-drive dynamics, understated styling, and the durability of Toyota-derived powertrains, and who can perform or afford periodic refreshes of the suspension, cooling system, and electronics. Conversely, shoppers seeking low ongoing costs, maximum fuel economy, or the latest safety technology should look elsewhere; insurance premiums, premium fuel requirements, and the scarcity of low-mileage replacements make the GS 300 less attractive for purely economical buyers or those prioritizing modern driver aids. If a pre-purchase inspection clears the transmission, engine, and structural rust concerns, and the price reflects the mileage, the 2006 GS 300 remains a rewarding used-luxury choice—but only for owners prepared for its specific maintenance realities.