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Diesel mixed with engine oil increasing level of engine oil

The engine oil level is increasing, But fuel pump changed, out side nozzle oring changed

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Usually if outside o rings fail the its often soon after the inside rings and seals go to. injector pump overhaul the solution. You could just remove the pump and replace the front seal but it would only be a short term fix as the bushings in pump are likly worn

Posted on Dec 10, 2012


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Posted on Jan 02, 2017

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SOURCE: isuzu 2001 diesel engine won't start

cant start deisel 3.0 lilter sounds like there is no fuel getting to the engine

Posted on Feb 15, 2009

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SOURCE: fuel filter on a 6.2 diesel

You need to install an electric fuel pump to lift the fuel from the tank to the mechanical pump. You can turn off the electric pump after starting or use it when bleeding the lines after changing the fuel filter. You can start the truck after a few minutes instead of a few days. I know from experience and fought that problem for years.


Posted on May 25, 2009

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SOURCE: oil pump seal leaking

remove the timing belt cover then the belt! and the pullies!

Posted on Jun 23, 2009

The GQ
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SOURCE: chevrolet 2.8 litre diesel fuel pump to engine timing

They have 2.8 liter diesels???

Posted on Sep 20, 2009

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SOURCE: I'm replacing fuel pump on 2000 Ford F250 7.3

OTC Set, Fuel Line Disconnect Tool
OTC Part Number 7660- there are other tools that compress these fittings available at most auto parts stores.

Posted on Dec 18, 2009

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I put oil w20 in the gas tank of my mercedes benz Please help

ordinary engine oil
will not be a problem as it mixes well with the diesel fuel and will be burnt through the injectors
diesel fuel is just engine oil refined to a higher level

Jul 11, 2017 | Cars & Trucks

1 Answer

Witch engine oil is suitable for a VW Jetta 4?

TWO answers read and follow the Manufacturers Specification. OR Always use ** 15-40 Diesel Rated Oil is ALL gas, natural/propane and diesel Engines! Use Purolator, then WIX, then Manufacturers Filters - NEVER Fram, "special". oil the oil lube shops filters!!! WHY? When flying planes, every 100 hours I remove the filter, cut it open, and INSPECT the filter material for particulate. My Vehicle Engines go for well over 600,000 miles - most other peoples. simply do NOT!

** I use Delo 15-40 in everything - an better one is Shell Rotunda, however too expensive and not needed! In gas engines after 500 miles, the FIRST Time ONLY - Replace the oil AND FILTER - mixed fuels and oils NEVER mix well. Then on gas engines ONLY replace the filter at the "normal" intervals and ADD not change, the oil... On Diesels, due to the extreme compression, you DO change the oil, at "normal" intervals. In gas, NOT diesel engines - you could use Pep Boys and/or Walmart's generic DIESEL GRADE oil - NOT in diesel engines, as from my experience.

AVOID gasohol - unless you like flash rust and oxidation inside your engine AND 30% less fuel mileage - NEVER use WD40 on ANY metal you want to reuse! And do NOT use BP or unknown small time gas stations - as MANY "top off their fuels" with other octanes - which LOWERS the octane - do to "covalent bonding of carbon molecules" Example: a 50/50 mix of 100 octane with 90 = closer to 80 NOT "in the middle".

Nov 03, 2016 | Cars & Trucks

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Oil go to diesel then engine need oil diesel looks like mix with oil

Its sounds like you're priming pump has a leaking oil in to fuel line

May 02, 2015 | Cars & Trucks

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How to tune your diesel toyota up

Every three months or when the oil change is due, is the right time to perform a tune-up. A diesel engine needs good, clean oil, fuel, and air. Traditionally good car owners think that they are doing well by changing the oil when needed, take a look at the engine once a year, and let the state inspection guy tell them if they need something safety related. With this logic, the car seems fine and later on, down the road, the owner wonders what is wrong. I say this because some or most car owners don't perform a tune-up every year. Cars are lucky to see one in five years. A clogged fuel filter will increase fuel usage, wear out fuel injectors faster, cause more wear on the fuel injection pump and the fuel transfer pump, and cause O-rings to leak or fail. An over due oil change will affect the life and performance of the fuel injectors, fuel injection pump, engine cylinders and valves, and the turbo. An old, clogged air-filter will not allow the right amount of air to enter into the engine. This will cause carbon build-up (from unburned fuel). So now that I preached your ear off (lol). This is why I recommend performing a "Tune-up" at every oil change. I don't know how many miles you put on the vehicle each year and I don't know how much you want to do yourself. So I'll just put the information out there and you will need to decide if you want to do it or have someone else take care of it. Every time I perform an oil change I check the following (I work on a lot of different cars and trucks so some of the items may not be in your car): Oil level and color, last oil change interval, fuel filter, air filter, serpentine belt, related pulleys, damaged wiring or hoses, antifreeze lever, color, age, and the cap on the radiator and overflow tank, windshield washer level and performance, power steering fluid lever and color, brake fluid level and color, wiper blades, all lights, cracked lens, license plate and sticker, state inspection sticker, seat belts (need to function and be free of defects), Steering wheel is tight(no excessive play), horn works, All warning lights are working and none are are on while vehicle is running, climate controls work, wipers and washer fluid works, glass and mirrors are clean and not damaged, window glass, door handles and locks, exhaust (is it secured or leaking and are the heat-shields in place), gas cap, Tire wear, inflation, tread depth, even tread wear, no bubbles in side-walls of tread, no cuts, and the that all the valve stems have a valve cap in place, rims are free of defects (not bent, warped, cracked, or damaged), shocks, both front and rear suspension, brakes, E-brake operation, wheel bearings, steering components, transmission level, color, and condition, gear oil level, color, and condition inside the drive axle, rot, holes, and damage underneath, inspect E-VAP lines, fuel lines, brake lines, transmission lines, power steering lines, U-joints, yokes, seals, CV joints, grease components (like ball-joints and tie-rods), and that your spare tire is secure, and full of air. That is about it. If this is done then future repairs will not be a surprise, components will last longer, and when you do need a repair it will cost you less because you caught it before it damaged something else. I hope this helps you and if you have any other questions, please feel free to ask. Good luck. Also I do believe in Diesel fuel treatments. The new diesel fuel does not lubricate injectors well. Look for additives that clean and lubricate the fuel system and boosts Cetane levels.

Feb 12, 2014 | Cars & Trucks

1 Answer


Hi John, These days most oils are formulated to be used in both petrol and diesel engines but those formulated specifically for diesels should not be mixed. If your talking of a top up I suggest a flush with a good quality chemical and a lub service. If you have had a service carried out and changed the type of oil the same applies. Mixing oils can cause fast sludge build up which can block the filter, oil pump and galleries. These days most oils are designed to run both types of engine, but mixing is neve a good idea. Regards John

May 01, 2013 | Cars & Trucks

2 Answers

My isuzu truck mixes diesel and engine oil. what is the cause?

the injector are along top of engine , the lines all run back to a pump usually attached to engine side, only unit with multiple metal tubes running out to engine top, removal of injectors requires some special tools. this requires good diesel knowledge and tools to repair either one.

Jun 09, 2012 | Isuzu Cars & Trucks

1 Answer

My ist experienced with my 4jx1 engine was, diesel fuel mixing wid water inside my radiator so i replaced set of O ring at nozzle, 2nd is after a month i cant start my engine until i replace RPCV sensor...

you need to replacing Injector 'O; rings properly,
we had good experience with those problems.
if u need timing pictures & Injector 'O' ring pictures i can send u.
Edirisinghe Auto Engineering(Pvt)Ltd.
Sri Lanka.

Jan 07, 2011 | Isuzu Trooper Cars & Trucks

3 Answers

My 3406b caterpillar engine is having excessively high oil levels

Time to find out why your oil level is going up.
Either coolant in the oil, or fuel in the oil.
Which ever it is the cat engine is not happy. My suggestion would be to get an oil sample test.
Any major diesel repair place will help. Just a little oil in a sterile jar to be analyzed for contaminants.
Coolant is the worst as it will scour the bearings.
Good thing you are concerned.

Dec 02, 2010 | Ford F-450 Cars & Trucks

1 Answer

My isuzu wizard 1999 model diesel mixes with oil, I was thinking to change Nozzles the engine is 4jx1

If oil mixes in the combustion chamber, then you're up for an engine overhaul. Nozzle changes won't do.

Nov 04, 2010 | 1999 Isuzu Trooper

2 Answers

I have a 2002 Ford F-250 Diesel 7.3 litre Super Duty truck. It is leaking oil from an area beneath the fuel filter. What part would I need to repair this leak?

there are 2 high pressure lines that attach to the high pressure pump near the front of the engine left side. the o rings leak. I would get them from the dealer, or a shop that does a lot of Diesel work. Its not a easy job.

Aug 31, 2010 | 2002 Ford F250 Super Duty SuperCab

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