Sneakystiffler21 Posted May 1, 2012 Report Share Posted May 1, 2012 In my last SS i ran mobile one synthetic with mobile one filter religiously, it also only has 38k miles on it when I bought it and 78k on it when I sold it. The "new" SS i bought has 201k miles on it, would you guys still recommend 5w30 mobile one synthetic or something a little thicker like 20w50? Quote Link to comment Share on other sites More sharing options...
rickyrick562 Posted May 1, 2012 Report Share Posted May 1, 2012 I'm only at 59k Quote Link to comment Share on other sites More sharing options...
Sneakystiffler21 Posted May 1, 2012 Author Report Share Posted May 1, 2012 Do you want a cookie.... Quote Link to comment Share on other sites More sharing options...
The_aSSet Posted May 1, 2012 Report Share Posted May 1, 2012 Do you want a cookie.... Haha nice. On the subject of your oil, I don't see why you shouldn't run the regular weight but maybe someone with higher mileage experience will chime in. how does she run for being at 200k? Quote Link to comment Share on other sites More sharing options...
kissfans03ss Posted May 1, 2012 Report Share Posted May 1, 2012 I know some oil companies make oil for higher mileage motors, I think valvoline is one.We need ti hear from the guy that has over 300k on his truck. I was always taught that oil is the lifeblood if your engine, change it frequently and you should be good. Sent from my DROID BIONIC using Tapatalk 2 Quote Link to comment Share on other sites More sharing options...
Parriott31 Posted May 1, 2012 Report Share Posted May 1, 2012 Im running Royal Purple I have 130K on her now I noticed It ran better as soon as I made the switch. Only problem is it is pretty expensive. But It smeels good too haha Quote Link to comment Share on other sites More sharing options...
MARTYW Posted May 1, 2012 Report Share Posted May 1, 2012 I agree. I dont see where you chould have to change weights. Maybe a quart of Lucas oil treatment in place of one of your quarts? A lot of people around here use it. We sell a ton of it. I run it in my S10, which currently has 189K. Quote Link to comment Share on other sites More sharing options...
Sneakystiffler21 Posted May 1, 2012 Author Report Share Posted May 1, 2012 Haha nice. On the subject of your oil, I don't see why you shouldn't run the regular weight but maybe someone with higher mileage experience will chime in. how does she run for being at 200k? She runs just as good as the last 03 I had that I bought with 35k and sold at 78k, just want to keep her that way and have never had anything with this high of miles. I wouldn't normally buy anything like this but I got it for a steal and it had all the paperwork and was a one owner that was meticulous. I only drive within a 30 mile radius of my house(work and towing the boat to the lake) so if it does break down, I'm not out much and it's time for upgrades. Quote Link to comment Share on other sites More sharing options...
BlueAKSSS Posted May 1, 2012 Report Share Posted May 1, 2012 I would just run 5w30 if it runs good and quiet. After all at the end of the day GM designed these engines to run with 5-30. Quote Link to comment Share on other sites More sharing options...
Sneakystiffler21 Posted May 1, 2012 Author Report Share Posted May 1, 2012 Im running Royal Purple I have 130K on her now I noticed It ran better as soon as I made the switch. Only problem is it is pretty expensive. But It smeels good too haha Just added it up and it's the same price for Royal Purple 5w30 and filter from summitracing.com as buying Mobile one synthetic and filter from Autozone. I did notice that Mobile one has a high mileage full synthetic 5w30 that's for over 75k miles. Doesn't really elaborate on what makes it better than regular mobile one full synthetic. Quote Link to comment Share on other sites More sharing options...
JC03SS Posted May 1, 2012 Report Share Posted May 1, 2012 I would also say run 5w 30 as well. I ran mobli 1 for a few years until i tried amsoil. Ill never run anything other than that now. I can put 2000 miles on this oil before it starts to turn any color. Mobil turn black after 1500. Quote Link to comment Share on other sites More sharing options...
Silverad0 SS Posted May 1, 2012 Report Share Posted May 1, 2012 I run 5w30 in the winter an 10w30 in the summer Quote Link to comment Share on other sites More sharing options...
Cramer Posted May 2, 2012 Report Share Posted May 2, 2012 Mobile 1 here with 151k on it. When I bought it the owner said he used only M1 and when I did my cam swap at 138k the inside of the valve covers, upper valvetrain and everything that would normally have some discoloration on it looked brand new. I also switched to Royal Purple at the time of my cam swap and about 1k later I pulled the valve covers to put a painted set on and to check my springs the inside of the valve covers already had tarnish on it. I will advise that you not ever use a Fram filter especially the "hi-mileage" kind. Keep running the 5w-30 synthetic and a good quality filter (M1, K&N etc) Quote Link to comment Share on other sites More sharing options...
Sneakystiffler21 Posted May 2, 2012 Author Report Share Posted May 2, 2012 Mobile 1 here with 151k on it. When I bought it the owner said he used only M1 and when I did my cam swap at 138k the inside of the valve covers, upper valvetrain and everything that would normally have some discoloration on it looked brand new. I also switched to Royal Purple at the time of my cam swap and about 1k later I pulled the valve covers to put a painted set on and to check my springs the inside of the valve covers already had tarnish on it. I will advise that you not ever use a Fram filter especially the "hi-mileage" kind. Keep running the 5w-30 synthetic and a good quality filter (M1, K&N etc) Always done the full Mobile One with Mobile 1 filter. Thanks for all your input guys! Quote Link to comment Share on other sites More sharing options...
Krambo Posted May 2, 2012 Report Share Posted May 2, 2012 For your higher mileage engine...does it "use" a little more oil than it used to or does it burn a little out the pipes? If you find yourself topping off the oil inbetween changes, you may wish to check your oil pressure. If it is a bit lower than when new, your bearings could be wearing to the point where a heavier oil may be in order (10W30). I often switch to a heavier oil around 100k in my beater cars. Quote Link to comment Share on other sites More sharing options...
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