Comma X-Flow Flush Out 5L – Engine Flushing Oil
Comma X-Flow Flush Out is a 5 litre mineral flushing oil for petrol and diesel engines, particularly useful where an engine has suffered from neglected servicing and accumulated sludge or carbon deposits. Unlike a concentrated flush additive, Flush Out temporarily replaces the drained engine oil during the cleaning process.
- Traditional mineral flushing oil for petrol and diesel engines
- Helps remove accumulated sludge and carbon deposits
- Full-fill treatment used after draining the old engine oil
- 5 litre container – Comma product code XFFO5L
£20.40 inc. UK VAT
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Comma X-Flow Flush Out is a traditional mineral flushing oil intended for cleaning petrol and diesel engines before refilling with fresh engine oil. It is particularly relevant to heavily neglected or sludged engines, where simply adding a small quantity of concentrated cleaner to the existing oil may not be the preferred approach. The old engine oil is drained first and Flush Out is used as a temporary complete oil fill while the engine is fast-idled, helping remove sludge and carbon deposits from the lubrication system.
How to use Comma X-Flow Flush Out
- Warm the engine and drain the used engine oil
- Refit the sump plug and refill the engine with Flush Out
- Start the engine and fast idle for 10 minutes
- Drain the flushing oil and refill with the correct fresh engine oil
Check the engine oil capacity before use, as Flush Out replaces the drained oil rather than being added to it. For concentrated cleaners and other treatments, see our Additives & Flushes section.
| Weight | 5.5 kg |
|---|---|
| Dimensions | 40 × 20 × 20 cm |
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Twinwoods 4x4 ships Land Rover parts across the UK and around the world. We regularly send parts overseas and use trusted tracked courier services so UK and international customers can order with confidence.
Standard UK shipments are normally sent with DPD. UK orders containing oils or fluids are normally sent with DHL where required, because some carriers restrict liquid shipments.
Worldwide delivery is available through DPD and DHL Express, depending on the destination, parcel size, weight and available courier services. Add the parts you need to your basket, enter your delivery address, and the checkout will show the available delivery options and prices before payment.
Free mainland UK postage and packaging is available on eligible orders over £99, subject to our delivery terms and conditions.
- Changed your mind? Tell us within 14 days of delivery. You then have a further 14 days to return the goods.
- Return carriage and safe packing are your responsibility for change-of-mind returns.
- Managed UK returns: where suitable, we can provide a cost-effective, hassle-free tracked return service with straightforward drop-off, proof of handover and tracking linked to your return. The cost will be advised before it is arranged and may be deducted from your refund.
- Change-of-mind returns must be returned complete, in their original packaging and in resaleable condition. Returned goods must be the same goods supplied by us and complete with all components, accessories and any free or promotional items supplied with them.
- Please do not fit or attempt to fit a part unless you intend to keep it. Fitting, attempted fitting, contamination, damage, missing packaging or excessive handling can substantially reduce the value of the goods and may result in a corresponding reduction to your refund.
- Faulty, damaged or incorrectly described? Contact us first. We will advise the appropriate return method and will normally provide a prepaid return service or cover reasonable agreed return costs.
Returns – quick FAQs
How long do I have to return an item?
Who pays return carriage?
What condition must a change-of-mind return be in?
Fitting, attempted fitting, contamination, damage, missing packaging or excessive handling can substantially reduce the value of the goods and may result in a corresponding reduction to your refund.
Can I fit a part and then return it?
Once a part has been fitted or an attempt has been made to fit it, it may be marked, contaminated, damaged or otherwise unsuitable for resale as a new part. We do not operate a used-parts or bargain-bin section, so a fitted or damaged part can have very little resale value.
Where your handling has reduced the value of the goods beyond what is reasonably necessary to inspect them, your refund may be reduced to reflect that loss in value.
What if the item is faulty?
Are any items excluded from change-of-mind returns?
How do I start a return?
Please include your order number and a brief reason for the return. Do not send anything back until you have received the appropriate return instructions.
Buy with confidence: all new parts sold by Twinwoods 4x4 include at least 12 months manufacturer warranty against defects in materials and workmanship under normal use.
Some products and brands may include a longer warranty period where this is provided by the manufacturer. Where applicable, this will normally be stated on the individual product page or covered by the manufacturer’s own warranty terms.
Warranty cover applies to manufacturing defects. It does not cover misuse, incorrect fitting, competition use unless stated, contamination, modification, damage during installation, normal wear and tear, or failure caused by an unrelated vehicle fault. For certain components, proof of professional fitment may be required.
Warranty claims may require the part to be returned for inspection and/or supplier testing before the claim is accepted. Any advance replacement is discretionary.
Warranty remedies relate to the part itself, meaning repair or replacement, or refund if those are not possible. Warranty does not cover labour, removal or refitting, diagnostics, consumables, travel or other incidental costs.
This warranty is in addition to your legal rights and does not reduce those rights.
For full details, please see our Terms and Conditions.


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