Oil filter change in old car - how often?

Things have moved on in 15 years. Very much so with oils, as with so much else.

Reply to
Dave Plowman (News)
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My God he wrote some sense. Yes fully synthetics are so cheap you can buy them in Tesco. In 1986 you could only buy them in rare dealers. Even the article stated it was amazed that some automotive people had never heard of Mobil 1 which was ~17 years old by then.

Get what the article stated. The lubrication properties of pure synthetics were "enormous" to crap mineral or semi-mineral. Then look at the prices of synths now and it is a no brainer. Anyone who does not buy them being made awre of all this needs attention.

Again....for the hard of thinking...The article concludes:

'Does all of this mean that synthetic motor oils are superior to conventional petroleum oils? If you value your automobile engine and would like to keep it in peak, trouble-free operating condition year after year and far beyond its normal expected life, our conclusion is "Yes, without question."'

That was written in 1986 when synthetics were "very" expensive. In Tesco, a supermarket, most oils on the shelf were semi or full synthetic up to API SM and well priced. Now there is no excuse not to use them.

If you want you car to deteriorate please buy the cheapest oil from a Pound Shop and sprinkle sand in it for good measure.

Reply to
Doctor Drivel

Well, that knocks it on the head for synthetics then...Drivel approves.

Reply to
Bob Eager

BZZZZZZZZ!! k*****ad Alert!!! BZZZZZZZZ!! k*****ad Alert!!! BZZZZZZZZ!! k*****ad Alert!!! BZZZZZZZZ!! k*****ad Alert!!!

Reply to
Doctor Drivel

In message , Doctor Drivel writes

This new medication doesn't seem to be working, does it dIMM

Reply to
geoff

In message , Doctor Drivel writes

Is that what attracted her to drivel senior?

Reply to
geoff

Even so, 250K isn't to be sniffed at. The old Tranny 2.5Di lump would do 250K while shamefully neglected, as would the Escort 1.6D, the Montego Perkins O-series diesel and a host of others. Many examples of those mentioned were quite capable of doing many more miles than 250K is properly maintained - the bodywork and general state of the vehicle usually dictated a trade-in/scrapyard/pikey eventually.

Reply to
grimly4

Maxie, that is so right. They need proper diagnosis

Reply to
Doctor Drivel

Maxie, we have this ability to identify knobheads. I can identify knobheads and drivel when written. Now that is amazing to some people.

Reply to
Doctor Drivel

On the shelves my dear person.

Reply to
Doctor Drivel

Confusion reigns supreme in such minds.

Reply to
Doctor Drivel

There was no penny-pinching. I started with Valvoline semi some 15 years ago. It took a while before I could find a known good oil, other than pay the extortionate price of around =A340 for Mobil1. Filters replaced and new wipers fitted. A ring degum using MoreMPG and an on the road bed-in session. Where do you see penny-pinching? Do you object to my capabilities of doing my own motor servicing? Do you think I should have just bunged the dealer =A3150 for doing suspect servicing? Taken the adjustments to book specification rather than looking foer maximum torque and an extended upper range?

Where's the penny-pinching. I paid over =A335 for the required service items, all an enhancement on manufacturers specification.

Reply to
thirty-six

Christ, it's like bollocks colliding.

Reply to
grimly4

If you read the two articles I posted link to, you will see that Mobil 1 was not extortionate at all when looking at the big picture. For the past 20 years putting anything except fully synthetic in a car has been false economy. The price of full synthetic now is not worth looking at twice.

The articles clearly put across that rings do not degum and gave photos, when using pure synthetics.

The only thing an end user can do to improve their car's performance in many aspects, is put energy types on the wheels, use pure synthetic oils and ultimate type of fuels (may not be needed with pure synthetics. They do have fuel system cleaner in the fuel.

Reply to
Doctor Drivel

The expected lifespan of the vehicle was between 2 and 5 years. The semi-synthetic cost about =A312 , Mobil 1 cost around =A340 . As I had yet to be convinced, especially considering the engine had been designed and evolved with mineral oil in mind, and I had no examples of a full synthetic being used other than by rally enthusiasts in what on the face of it were more advanced powertrains, there was no need to plummet for the Mobil 1, my annual milage at around 5000 did not warrant it.

If I needed a vehicle for six months, I'd probably use the cheap stuff.

No, I used a degum treatment called MoreMPG. Possibly acetone in a heavily dried linseed oil.

The original tyres were Goodyear energy tyres. A thinner tread provides a lower rolling resistance, which is why I wasn't eager to change the tyres as they approached 3mm. At about 2.5mm it is normal to get new tyres to cope with snow but for the rest of the year, the legal minimum at 1.6mm is satisfactory for rain.

I didn't use a special fuel. The fuel was the regular leaded at the time and this particular filling station obviously did not tamper with their fuel stock. It had previously been the base of a large private hire business and I expect custom remained brisk with the taxi drivers in the area. When I needed to refuel out of the area, it became clear that Total and Elf generally supplied the best 4-star fuel.

Reply to
thirty-six

The expected lifespan of the vehicle was between 2 and 5 years. The semi-synthetic cost about £12 , Mobil 1 cost around £40 . As I had yet to be convinced, especially considering the engine had been designed and evolved with mineral oil in mind, and I had no examples of a full synthetic being used other than by rally enthusiasts in what on the face of it were more advanced powertrains, there was no need to plummet for the Mobil 1, my annual milage at around 5000 did not warrant it.

Do some sums. 5 years @ 5000 miles is 25,000 miles. Mobil 1 was guaranteed to last 25,000 miles then as it was then a pure synthetic. You have the economy and the ultra protection. It is a no-brainer.

No need as the engine oil does it for you.

I have been using synthetics since around 1988 to 1990, They have always made economic sense when I did the numbers. Not once have I had a problem with a part that was lubricated by the oil. The engines always kept their newness feel and sound.

You can pound engines when using pure synthetics and nothing ever happens to them. Also I always try and get pure synth gear oils as well. I have never had problems with gears either.

Reply to
Doctor Drivel

Me neither, I never changed/topped-up the gear oil in an XR2 in 16 years from new. Always used Duckhams 20/50, not a seconds bother. You can stick the cranking speed up your bum, if it starts, it starts. I only ever wanted to get from A to B.

Reply to
brass monkey

I had no data to indicate the possible gains in performance and economy for the engine. I don't recall any knowledge of a guarantee for Mobil. From my recolection, I used the vehicle for 2.1/2 years on the semi-synthetic at a total not exceeding 11,000miles, and that was the last I used it. Overtaking performance remained excellent and economy was retained throughout. I did not require an oil with a longer lifespan,what I used exceeded the lifespan of the vehicle.

Doubtful it could clean up gummed-up rings in an hour.

It makes sense over the standard product, but I wonder whether there is something which gives a better economy.. I know were I am with engine temperatures and oil viscocities, but a bit in the dark for choosing gearbox lubricants outside of those specified (other than choosing the lowest viscocity for short journies). There are alternatives and I know that drag racers will run a gearbox without oil.

Reply to
thirty-six

In article , ARWadsworth writes

It's to keep the servicing costs down for fleet managers. Doesn't do the engine much good though.

Reply to
Mike Tomlinson

Maybe he got banned from all the plumbers merchants for nicking the leaflets and now he's shelf stacking in Tesco's although he does seem a bit underqualified for such a position.

More to the point where has he been all this time or has he been here all along and is it a case that my dribble kill filter has recently failed?

Reply to
The Other Mike

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