How much does a 1990 BENTLEY MULSANNE cost to run?

Estimated annual running cost is £2,757 (£230/month), including £1592 fuel, £760 road tax, £55 MOT, and £350 predicted repairs.

What is the MOT pass rate for a 1990 BENTLEY MULSANNE?

The 1990 BENTLEY MULSANNE has a 88% MOT pass rate based on 138 tests in 2026. This ranks 27 out of 190 cars from 1990.

Which year BENTLEY MULSANNE is most reliable?

The 2018 BENTLEY MULSANNE has the highest MOT pass rate at 100%. The least reliable year is 1991 at 86%.

BENTLEY MULSANNE (1990)

Q: Is the 1990 BENTLEY MULSANNE reliable?

Good reliability. Occasional issues but generally solid. 88% of BENTLEY MULSANNEs from 1990 passed their MOT first time in 2026, based on 138 tests. That's 6 points above the national average of 82%.

Q: What is the average mileage for a 1990 BENTLEY MULSANNE?

The average mileage for a 1990 BENTLEY MULSANNE is 78,194 miles, which is significantly below the expected 266,400 miles for a 36-year-old car. Low-mileage examples may have spent time sitting unused, so check for issues like corroded brakes or perished rubber seals.

Running costs, reliability data, and common problems from 138 real MOT tests.

Annual Cost

£2,757

£230/month

MOT Pass Rate

88%

Good

Road Tax

£760

Based on CC/year

Insurance

Grp 35-50

6750cc Petrol

Solid Option

88% pass rate, £2757/year to run. 6 points above average.

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Petrol6750cc36 years old138 tests78k miles avg

Annual Running Costs

Fuel (Petrol, 6750cc)

~30 mpg

£1,592

Road Tax

Based on 6750cc

£760

MOT Test

£55

Predicted Repairs

£350

Total per year£2,757

Per month£230/mo

Per week£53/wk

Based on 7,400 miles/year (UK average), current fuel prices, and repair likelihood from MOT data. Insurance not included.

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Reliability Verdict

88% MOT pass rate(Good)

0%National avg: 82%100%

Good reliability. Occasional issues but generally solid. That's 6 points above the national average of 82%. It falls below the BENTLEY brand average of 94%.

At 36 years old, 88% of BENTLEY MULSANNEs from 1990 passed their MOT first time in 2026. That's based on 138 tests across the UK. The average mileage at this age is 78,194 miles.

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How Does It Compare?

Rank among 1990 cars27th of 190(top 14%)

Rank among BENTLEY models103th of 117(top 88%)

vs national average+6%(82% avg)

vs 1990 cars average+9%(79% avg)

vs BENTLEY average-6%(94% avg)

Mileage Analysis

78,194

Average miles

266,400

Expected for age

The average 1990 BENTLEY MULSANNE has 78,194 miles on the clock, which is significantly below the expected 266,400 miles for a 36-year-old car. Low-mileage examples may have spent time sitting unused, so check for issues like corroded brakes or perished rubber seals.

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Best Year to Buy?

The most reliable year is the 2018 model with a 100% MOT pass rate, while the 1991 model has the lowest at 86%. The 1990 sits between the two at 88%.

BENTLEY MULSANNE by Year

Year	Pass Rate	Tests	Avg Mileage
2021	96%	54	9,124 mi
2020	99%	76	12,990 mi
2019	98%	197	21,125 mi
2018	100%	95	27,069 mi
2017	99%	297	22,331 mi
2016	98%	335	27,325 mi
2015	95%	249	28,860 mi
2014	99%	237	41,306 mi
2013	98%	175	35,886 mi
2012	96%	203	43,144 mi
2011	93%	283	47,470 mi
2010	100%	86	60,646 mi
1991	86%	66	83,012 mi
1990	88%	138	78,194 mi

Similar Cars to Consider

ROLLS ROYCE SILVER SPIRIT

1990 · 6750cc Petrol

£2,247/year

87%

-1%

BENTLEY TURBO

1990 · 6750cc Petrol

£2,097/year

93%

+5%

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About the 1990 BENTLEY MULSANNE

The 1990 BENTLEY MULSANNE is a luxury with a 6750cc petrol engine. 138 of these vehicles were MOT tested in 2026, making it a rare model on UK roads. It ranks in the top 14% of all 1990 cars for reliability.

With an average of 78,194 miles at 36 years old, BENTLEY MULSANNE owners tend to use this car less than the typical driver. Very low mileage could mean the car has been garaged or used only for short trips, which can cause its own issues like battery drain and moisture buildup.

1990 BENTLEY MULSANNE Fuel Costs

The 6750cc petrol engine is on the larger side, so fuel won't be this car's strong point. Expect around 30 mpg in mixed driving, which works out to roughly £1,592 per year at current petrol prices of 142p per litre (based on 7,400 miles per year).

What does it cost to own a 1990 BENTLEY MULSANNE?

Total estimated annual running cost is £2,757 (£230/month), broken down as £1592 fuel, £760 road tax, £55 MOT, and £350 predicted repairs. Repair costs are moderate, reflecting the 88% pass rate. Keeping on top of servicing will help avoid surprises.

BENTLEY MULSANNE Reliability Trend

Newer BENTLEY MULSANNEs show better MOT pass rates than older ones, with an average improvement of 4 percentage points.

Buying a Used 1990 BENTLEY MULSANNE

At 36 years old, the BENTLEY MULSANNE is firmly in budget territory. Purchase prices are low, but check for rust, worn suspension bushes, and electrical gremlins. A full service history is especially valuable at this age. If you're flexible on year, the 2018 model has the highest pass rate at 100%.

Common Issues to Watch For

Based on the 1990 BENTLEY MULSANNE's fuel type, age, and engine size, these are the most likely problem areas to check.

Timing Chain / Belt

Watch out

At 36 years old, check whether the timing belt has been replaced (typically due every 5-7 years or 60,000-100,000 miles). A snapped belt can destroy the engine.

Oil Consumption

Medium risk

Larger petrol engines can develop higher oil consumption as they age. Check the oil level and look for blue smoke from the exhaust.

Rust and Corrosion

Watch out

At 10+ years, check wheel arches, sills, subframe, and brake lines for rust. Structural corrosion is an MOT failure. Prevention is far cheaper than repair.

Suspension Bushings

Watch out

Rubber suspension bushes harden and crack with age, causing knocking noises and vague handling. A full refresh costs £300-£800 depending on the car.

Service History

Low risk

Always request a full service history. Regular servicing is the single best indicator of how well a car has been maintained, regardless of mileage.

Running Costs Compared

How the 1990 BENTLEY MULSANNE stacks up against similar cars for annual running costs, insurance, and tax.

Car	Pass Rate	Fuel/yr	Tax/yr	Insurance	Total/yr
BENTLEY MULSANNE(1990)	88%	£1592	£760	Grp 35-50	£2757
ROLLS ROYCE SILVER SPIRIT(1990)	87%	£1592	£250	Grp 35-50	£2247-£510
BENTLEY TURBO(1990)	93%	£1592	£250	Grp 35-50	£2097-£660

Estimates based on 7,400 miles/year, current fuel prices, and MOT data. Insurance groups are indicative. Actual costs vary by driver, location, and usage.