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Is it better to have higher Ca in oil to clean sludge? Or is it better to have higher ester in oil to clean sludge? What oils have the highest amount of Ca? Mobil Turbo Diesel oil or Schaeffer, etc...??? What oils have the highest amount of ester? Redline or Maxima, etc...??? Thanks

I was using rotella 15w-40 and just recently Mobil Delvac 1300 15w-40. My motor has only 2700 miles and I noticed it consumed the most oil with the Mobil. I ended up switching to a lighter weight oil, 10w-30, so the rings can seat a little better. Wow, the 10w-30 really woke up my 1984 VW diesel...

I have rebuilt my 1984 rabbit diesel motor n/a. Everything is tight on this motor. I have been using Rotella Dino 15W-40 since first startup. I have changed the oil and filter at 20, 100, 300, 700, & 1000 miles. I know that my engine would consume oil since it is still breaking in. With the...

I have now accumulated 1000miles on my rebuilt 1984 VW Rabbit Diesel motor. It is a 1.6n/a. I have been using Shell Rotella T 15w-40. At what point is it safe to start using synthetic? I haven't had any problems with the Shell Rotella 15w-40, other than putting in 1/4-1/3 qt. every 200miles, due...

I have a diesel motor with a flat tappet cam. I just rebuilt the motor and wanted to start using a diesel oil that is not only really good but readily available at any autopart store or walmart. Right now, my motor is breaking in with Rotella T 15w-40. I have heard that the zinc levels in this...

Does anyone know where I can get Penetro 90 in the San Jose,CA area? Thanks

What weight and brand oil would you recommend for a 1973 detomaso pantera with a 351C? The car sits in the garage and is mainly driven on the weekends, probably put about 1500 miles a year. Thanks.

I have a vw 1.8turbo with 55,00o miles, which is chipped and driven hard. I am going to change my oil next week and was using amsoil 5w-40 ever since I've bought the car new. But the price is too much for me, so I am trying to find alternatives. I have narrowed the choices to these three because...

I have a vw 1.8turbo with 55,00o miles, which is chipped and driven hard. I am going to change my oil next week and was using amsoil 5w-40 ever since I've bought the car new. But the price is too much for me, so I am trying to find alternatives. I have narrowed the choices to these three because...

Currently I am using Torco SR-1 5w-40 in my GTI 1.8Turbo. Does anyone have any experience or feedback about this oil? Further, I was interested in Schaeffer 7000 5w-40, can anyone chime in on this oil? If you have a similar engine that is turbocharged and driven real hard, what oil do you use or...

I have a vw 1.8turbo. I am currently using Torco SR-1 5w-40. Does anyone else use this oil or can chime in if this oil is any good. Further, I am interest in using Schaeffers 7000 in 5w-40, can anyone give there opinions on this oil. I would like to know which one is the better of the two. My...