Recommended oils for high mileage engines
#22
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Originally Posted by 4x4Yota
n1das: Any leaks so far after switching to synthetic?
A few years ago, it needed to have its valve cover gaskets replaced due them leaking and there have been no leaks since. Time will tell. The engine is definitely quieter overall since I switched it to synthetic.
~ n1das
#23
Originally Posted by n1das
Dunno yet. Maybe too early to tell. None so far after about 400 miles of driving since the change.
A few years ago, it needed to have its valve cover gaskets replaced due them leaking and there have been no leaks since. Time will tell. The engine is definitely quieter overall since I switched it to synthetic.
~ n1das
A few years ago, it needed to have its valve cover gaskets replaced due them leaking and there have been no leaks since. Time will tell. The engine is definitely quieter overall since I switched it to synthetic.
~ n1das
#24
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I was running Valvoline 10-30 but upon recommendation from a couple friends, I switched to Castrol 10-30. My step-bro who works for BMW said that all they run is Castrol motor oil. There's probably a reason for that. So now I run Castrol and it seems fine to me. I guess time will tell.
:bounce2:
:bounce2:
#25
Originally Posted by AgRunner06
I was running Valvoline 10-30 but upon recommendation from a couple friends, I switched to Castrol 10-30. My step-bro who works for BMW said that all they run is Castrol motor oil. There's probably a reason for that. So now I run Castrol and it seems fine to me. I guess time will tell.
:bounce2:
:bounce2:
#26
Originally Posted by 4x4Yota
n1das: Any leaks so far after switching to synthetic?
I have run synthetic in my truck for 18 months now, and no leaks have developed because of it.
#27
Originally Posted by Glenn
Ahh the inevitable leak rumor of synthetics rises again.
I have run synthetic in my truck for 18 months now, and no leaks have developed because of it.
I have run synthetic in my truck for 18 months now, and no leaks have developed because of it.
Last edited by 4x4Yota; 11-22-2004 at 09:55 PM.
#28
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12/14/04 Update: No leaks or abnormal oil consumption after 2k miles since changing from 10W-30 dino oil to Mobil-1 10W-30 synthetic.
I'm sticking with Mobil-1 synthetic!
~ n1das
I'm sticking with Mobil-1 synthetic!
~ n1das
#29
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1/23/2005 Update: No leaks after 5k miles since switching from dino oil to Mobil 1 10W-30 synthetic. Oil consumption: Negligible (can't tell on dipstick...still FULL!).
1989 Toyota SR5 4WD truck, 175k miles
~ n1das
1989 Toyota SR5 4WD truck, 175k miles
~ n1das
#33
Originally Posted by Glenn
Ahh the inevitable leak rumor of synthetics rises again.
I have run synthetic in my truck for 18 months now, and no leaks have developed because of it.
I have run synthetic in my truck for 18 months now, and no leaks have developed because of it.
I also had a high mileage Ranger that I switched to syn and it didnt leak.....I run dino oil in my Taco.....
#34
Originally Posted by CynicX
Both my WRX and S10 have leaked oil directly after the switch....both were covered under warrenty and I kept using mobil 1.....I doubt it was coincidence, both happened less then 1000 miles after the switch....I think once you do the switch and dont have a problem, which I guess most vehicles dont, I just have bad luck, you'll be fine.....
I also had a high mileage Ranger that I switched to syn and it didnt leak.....I run dino oil in my Taco.....
I also had a high mileage Ranger that I switched to syn and it didnt leak.....I run dino oil in my Taco.....
#35
Originally Posted by VolcomTacoma
Where did the oil leak from on your WRX? Just curious.
On the s-10 it was around a rubber/metal compression fitting on a relocator line for either a oil cooler or filter relocator....I think it was the cooler...
#36
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Originally Posted by Bad_Bowtie_ssz71
I have always used Castrol GTX in my Chevies. Luckily the previous owners also used it in my Toy.
#37
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Originally Posted by epic37311
Why does Quaker State leave "sludge" on the valaves. I have seen it first hand. Is it the Base?
#38
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Originally Posted by CynicX
Both my WRX and S10 have leaked oil directly after the switch....
#39
Originally Posted by Ironmike4x4
If you've read the manual then you know that GM does NOT recommend running synthetic oils. We have too many people that wont read the stupid things and wonder why they have problems. S10s especially, I asked our technician about it and he said it was due to the designs of the intake and seals and it wont hold as well.
Matter of fact since it was lowered I had the dealer change the oil and I always took in Mobil 1 for them too use...they never mentioned anything too me....
I dunno, they fixed it, I sold it with 190k miles and the engine still running strong....