Td5 servicing usually comes down to three questions: which oil, which filters, and how often to change them. Get those right and the Td5 is a very durable engine. We know of many well-maintained examples still going strong with very high mileages because they have been serviced regularly with quality oil and filters.
Where owners get stuck is product choice. Price differences between oils and filters can be huge, but cheaper is not necessarily better, and the original handbook guidance now points to older oil specifications rather than the best modern options. That is why we recommend sticking to proven oils from reputable brands, using quality filters, and servicing the engine at sensible intervals rather than chasing the longest possible service life between changes.
Which oil is best for the Td5?
If you look in the owner’s handbook or RAVE, you will see oil recommendations based on older ACEA categories and viscosity ranges linked to ambient temperature. That information is still useful background, but oil choice today is usually better treated as a balance of specification, brand quality, engine condition and how the vehicle is used.
For normal Td5 servicing, a good quality 5W-30 or 5W-40 engine oil from a reputable brand is a sensible choice. We stock Rock Oil Synthesis F 5W-30 as our standard option and Ravenol VMO 5W-40 as our preferred premium option.
Rock Oil Synthesis F 5W-30 is a good standard oil for normal service use where an ACEA A5/B5 or Ford M2C913 specification oil is suitable. It gives Td5 owners a more affordable option without dropping into unknown or white-label oils.
Ravenol VMO 5W-40 remains our preferred premium Td5 oil. It meets VW 505.01 and has stronger high-temperature/high-shear figures, making it a good choice for tuned engines, towing, hard use, higher-mileage vehicles or owners who simply want the oil we consider the best option in our range.
The important thing is not just the viscosity on the label. Use a reputable oil, change it at sensible intervals and fit decent filters. A good oil changed regularly is a better approach than chasing the longest possible drain interval or buying the cheapest oil that happens to appear in a generic lookup tool.
The handbook viscosity chart is still useful for showing how Land Rover related oil grade to ambient temperature, but modern oil choice is about more than just viscosity.
Ravenol VMO is our preferred premium Td5 engine oil.
RAVENOL VMO 5w40
With a higher Viscosity Index Ravenol VMO will hold its viscosity much better. We recommend this oil for all Td5 engines, tuned or standard.
| Density @ 20 °C | 0.848 g/cm3 |
| Viscosity @ 100 °C | 13.3 cSt |
| Viscosity Index | 170 |
| HTHS (High Temperature High Shear) Viscosity at 150°C | 4.0 mPa.s |
| Total Base Number (TBN) | 8.7 mg KOH/g |
Which Td5 filters should you choose?
Price has a big influence on servicing choices, whether you are buying oil or filters, but cost should not be the only deciding factor. Good quality filters matter on a Td5, and saving a small amount on cheap filters is rarely worth it.
For Td5 servicing we mainly stock Mann and Mahle filters. Both are well-made, proven brands and the sort of filters we are happy to use ourselves. There are plenty of cheaper options on the market, but filter quality can vary more than many buyers realise.
To see the difference for ourselves, we bought a range of Td5 oil filters from different suppliers and cut them open for comparison. The variation in construction was surprisingly obvious, and Mann and Mahle cartridge oil filters stood out as some of the best made.
For air filters, a quality paper filter is still a sound choice for most vehicles. We also like the ITG filters, particularly on tuned Td5s, where they offer a high quality alternative. They are well made, reusable and made in the UK.
How often should you service your Td5?
If you read the owner’s handbook, you will see engine oil change intervals of 20,000km (12,500 miles) or 12 months, with some filters listed at different intervals. That guidance was written before these vehicles were new, and we do not think it is the best approach for a 25-year-old Td5 being used in the real world today. In practice, if you are changing the oil, it makes sense to change the filters at the same time rather than trying to stretch them for the sake of a small saving.
For most Td5s, we consider around 6,000 miles to be a much more sensible service interval for normal use, or at least once a year if mileage is lower. Vehicles that tow, work hard, do a lot of short journeys or cover very high mileage may benefit from more frequent servicing.
A Td5 service is not especially expensive if you are doing it yourself, which is one reason many owners choose to change all the filters together rather than trying to save a few pounds by leaving one behind until next time. Keeping the engine on clean oil and decent filters is simply good preventative maintenance.
Oil condition can also tell you something about how overdue a service may be, but mileage, time and usage are still the better guide. If the oil is heavily contaminated and clearly past its best, that is usually a sign the engine is ready for fresh oil and filters.
If you are servicing the vehicle yourself, make sure the waste oil is disposed of properly through the correct local facilities. Many local tips now accept small quantities of used engine oil.
Other fluids
Oil and filters are the main focus of most Td5 services, but they should not be the only fluids you think about. Coolant, brake fluid and clutch fluid all need checking and renewing at sensible intervals, especially on older vehicles where age alone can affect fluid condition.
Propshaft greasing is another job that is easy to overlook. If your vehicle has greaseable joints, use a good quality grease and make sure fresh grease is worked right through the universal joints. Sliding joints should be greased carefully rather than overfilled. Neglecting propshaft maintenance will shorten the life of even a good quality shaft.
This Td5 was slightly overdue a service....
A clean Td5 engine...
Td5 Recommended Fluids Quick Reference
These are the fluids we use. They may not be what was recommended 25+ years ago.
Td5 Engine Oil - Defender or Discovery
For normal Td5 servicing, use a good quality 5W-30 or 5W-40 engine oil from a reputable brand. Rock Oil Synthesis F 5W-30 is our standard option; Ravenol VMO 5W-40 is our preferred premium option.
7.2 - 8.2L required.
Rover Differentials (inc. Salisbury)
80w-90 / 75w-90 or just plain EP90 is fine. This should be a GL-5 oil. Mineral is best, and only mineral should be used in locking diffs.
LT230 Transfer Box
80w-90 / 75w-90 or just plain EP90 is fine. This should be a GL-4 oil. Mineral is best.
R380 Gearbox
MTF-94 should be used, although ATF Dexron III was specified in earlier models. We have found MTF-94 to be better for the gearbox, and ATF to be better for the driver (slightly smoother gear changes when cold). There are many oils that claim to meet MTF-94, some are just a 75w80 gear oil, some are even a 10w40 engine oil! Stick to reputable brands. MTF-94 is a 75w80 but with special additives.
ZF 4HP22 Automatic
ATF Dexron III is specified in the manual, however we use a fully synthetic ATF by Ravenol, specifically developed for 4HP and 5HP gearboxes. This offers much better protection.
Around 6L will be needed for a change as you cannot fully drain the fluid. The full capacity is 9.7L
Brake Fluid
DOT 4 brake fluid should be used. Don't skimp on this, you won't need much and cheap brake fluid doesn't last.
DOT 5.1 brake fluid can also be used, however do not confuse this with DOT 5 which is completely different and should not be used.
Avoid Mannol 3002 Brake Fluid DOT 4 (see here why)! It should not even be on sale anywhere. Cheap oils are cheap for a reason. You can check out a prospective oil manufacturer here.
Active Cornering Enhancement (ACE)
A cold climate power steering fluid should be used. If this is not available then ATF can be used, though this is not recommended.
Power Steering
A good quality ATF (Dexron III) should be used. Cold climate power steering fluid can also be used.
Coolant
Coolant containing organic additive technology (OAT) should be used in the Td5. Mix 50/50 - 10-15 litres of mix fills the system. For best results mix with distilled water.
Swivel Housings & CV
Since Land Rover did away with the drain and level plugs on the Defender swivel housings it's not practical to top up. When replacing the swivel housing grease use either Morris K48 or the Land Rover equivalent.
Grease
Parts such as universal joints, greaseable track rod ends etc should be regularly greased. We highly recommend Morris K48 which we use for all greaseable parts, nuts, bolts etc.
Our Td5 service kit includes the main filters needed for a routine engine service, with engine oil available separately as an optional add-on. This keeps the kit flexible, so you can choose the oil that best suits your vehicle and budget.
