Oils aint Oils in old 18RG's Sol!

[RT104GT]

I know we were talking about good oils to run in by. But I did get a surprise when I changed my Gulf 20W-50 to GTX and the filter and now get rattles as the oil pumps up on hot starts. The twin cam timing chains are fine and adjusted up but obviously the thiness or quality of GTX and the time to get oil pressure is causing the rattles. So its back to the better stuff asap. Anyone have a choice as to really really good oil to guarantee protection in that first 30 seconds on startup when hot? Or a good additive.

I also have a stiffness problem in the P51 I bought when selecting 4th (really stiff) especially when stopped and 2nd not so bad.
I'm wondering if a gearbox additive of some other choice other than the VBX80 i put in it.
There is a tube of moly for about $20 and I am told Porsche syncro boxes like ATU oil or LSD oil??? Any ideas thanks.

[oldcorollas]

what filter did you use?

if it is crap, the oil will drain back past the "anti drain back" valve on the filter, and increase time to get pressure when you start.

what oil did you have before?

typically, most 20W-50's have similar viscosities (since thats what the rating is)...

[RT104GT]

what filter did you use?

if it is crap, the oil will drain back past the "anti drain back" valve on the filter, and increase time to get pressure when you start.

what oil did you have before?

typically, most 20W-50's have similar viscosities (since thats what the rating is)...

Black and White ROF (Repco), and yes now I think of it the one I pulled out (same type) had no oil in it but was heavier (sludge). This engine hasnt been run for ages (15 years).
I drained out the Gulf/Qaker State stuff after 250k.
It was for older engines and really nice stuff. 20W-60 I think not 50.
The filters are narrower than normal but longer.

I wish I could fit the 18R type but it won't screw into the adaptor with the carbies on.

I'll go buy one with an anti drain back and I will fit my extension aluminium pipe like we use in the zed L28's to hold oil above in the filter stop this happening.

[oldcorollas]

perhaps buy a toyota or ryco filter. they are usualyl ok.

if the engine has 250Kkm on it, perhaps you should go back to the thicker stuff

however, rattle on startup is either worn chain, or no oil pressure. no oil pressure is often because the oil drains back, either thru the bearings, or more likely from the filter.. there will be no pressure until the filter fills up again...

which is why i asked about the filter...

[RT104GT]

perhaps buy a toyota or ryco filter. they are usualyl ok.

if the engine has 250Kkm on it, perhaps you should go back to the thicker stuff

however, rattle on startup is either worn chain, or no oil pressure. no oil pressure is often because the oil drains back, either thru the bearings, or more likely from the filter.. there will be no pressure until the filter fills up again...

which is why i asked about the filter...

yeah i will go back to where it worked well thats easily done.

Motor has done 239,000 km but has been topped.

[Classique71]

do 18rg's have that oil pressure driven chain tensioner like the 2t / 2tg's ??

if thats worn it'll rattle like a diesel on startup it needs oilpressure obviously to press out and tension up the belt , if seals are gone = oil passing thru the tensioner , that'll suck

Alsao boxen - how baout redline box fluids ? are they suitable for the older boxes ?

[RT104GT]

do 18rg's have that oil pressure driven chain tensioner like the 2t / 2tg's ??

if thats worn it'll rattle like a diesel on startup it needs oilpressure obviously to press out and tension up the belt , if seals are gone = oil passing thru the tensioner , that'll suck

Alsao boxen - how baout redline box fluids ? are they suitable for the older boxes ?

Yes they do but it was all quiet until I changed the filter and oil on weekend from Gulf to GTX.

So Im going down to Safeway and buy 4L of GulF 20w-60 for older engines and put it back in.

Its too coincidental when thats all I did.

[bnicho]

I use BP Corse Plus 25W60 in older/worn engines.

But I'm biased because I get a discount.

[oldcorollas]

i'd change the filter first, see if it makes a difference.. and then change the oil.

[mtp_69_i]

Alsao boxen - how baout redline box fluids ? are they suitable for the older boxes ?

If you can afford $100+ for 3 litres. That stuff is race quality but you pay for it.

I've heard good results from VMX80 + a Nulon additive.

[river]

Hi,

i'd change the filter first, see if it makes a difference.. and then change the oil.

Agreed. Get the Toyota filter. It costs a few dollars more but I have found them to bring the oil pressure up very quickly, whereas other brands seem to take a few seconds (which made that terrible rattle sound).

Good old fashioned 20-50 mineral oil works a treat in these engines. If you've chnged to something else that is synthetic or advanced cleaning properties then this can remove the built up sludge from years of the old mineral oil. Often it's the old sludge that keeps a tight seal and when it's removed then you can get oil leaks and noise.

seeyuzz
river

[GRUMPIRA28]

Yeah as said above, also these older engines run bigger clearances than modern day engines hence modern "thin" oils do not generally agree with them.

[Thomas]

I've heard good results from VMX80 + a Nulon additive.

Nulon G70 is good stuff.

[The Witzl]

Hi,



Agreed. Get the Toyota filter. It costs a few dollars more but I have found them to bring the oil pressure up very quickly, whereas other brands seem to take a few seconds (which made that terrible rattle sound).

Good old fashioned 20-50 mineral oil works a treat in these engines. If you've chnged to something else that is synthetic or advanced cleaning properties then this can remove the built up sludge from years of the old mineral oil. Often it's the old sludge that keeps a tight seal and when it's removed then you can get oil leaks and noise.

seeyuzz
river

Correct on both counts.

I run Gulf Western semi-synthetic "Protecta" 15W-50 in my 18R-GE... but i've been running that oil since the rebuild so i dont have any problems with sludge buildup.

I also only use Toyota oil filters.... you can use the filter off a 2JZ engine as an alternative to the 18R filter, its a bit smaller but still works just fine.
I have also found that the Toyota 18R filter does fit with the EFI system - you just have to angle it right to get it on and off.

[RT104GT]

Correct on both counts.

I run Gulf Western semi-synthetic "Protecta" 15W-50 in my 18R-GE... but i've been running that oil since the rebuild so i dont have any problems with sludge buildup.

I also only use Toyota oil filters.... you can use the filter off a 2JZ engine as an alternative to the 18R filter, its a bit smaller but still works just fine.
I have also found that the Toyota 18R filter does fit with the EFI system - you just have to angle it right to get it on and off.

Thanks Karl.

I think the first lot of oil after the oil change probably flushed a lot of crap out of the old engine (145000 km) and many years. Then I dropped out the filter and the oil and put in new stuff which is less sludgey and the filter was very heavy so a lot of carbon went out the filter.
main thing now is to use a good filter and a good oil on this lady.

Ya hear that river?