# synthetic oil on a high mile motor? **URL:** \ **Category:** NYSpeed Automotive\ **Created:** [July 15, 2008, 8:35am UTC](https://forums.speedlife.net/t/synthetic-oil-on-a-high-mile-motor/51511 "2008-07-15T08:35:55Z")\ **Posts on this page:** 11\ **Page:** 1
**Author:** ![jt76](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/jt76/32/5100_2.png) [@jt76](https://forums.speedlife.net/u/jt76)\ **Post date:** [July 15, 2008, 8:35am UTC](https://forums.speedlife.net/t/synthetic-oil-on-a-high-mile-motor/51511/1 "2008-07-15T08:35:55Z")
My 04 Grand Cherokee has 150k miles and has had nothing but conventional oil its whole life. When its cold, sometimes i have a lazy lifter, seems it takes a few seconds to pump up because its noisey as hell. A few people suggested that i switch to synthetic oil and it might fix the problem. Any input on this? thanks. ---
**Author:** ![turbo\_ls1\_ss](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/turbo_ls1_ss/32/7303_2.png) [@turbo\_ls1\_ss](https://forums.speedlife.net/u/turbo_ls1_ss)\ **Post date:** [July 15, 2008, 8:42am UTC](https://forums.speedlife.net/t/synthetic-oil-on-a-high-mile-motor/51511/2 "2008-07-15T08:42:48Z")
nitrous put it out of its misery. have your gf buy it ---
**Author:** ![jt76](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/jt76/32/5100_2.png) [@jt76](https://forums.speedlife.net/u/jt76)\ **Post date:** [July 15, 2008, 8:48am UTC](https://forums.speedlife.net/t/synthetic-oil-on-a-high-mile-motor/51511/3 "2008-07-15T08:48:15Z")
😃 ---
**Author:** ![turbo\_ls1\_ss](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/turbo_ls1_ss/32/7303_2.png) [@turbo\_ls1\_ss](https://forums.speedlife.net/u/turbo_ls1_ss)\ **Post date:** [July 15, 2008, 8:53am UTC](https://forums.speedlife.net/t/synthetic-oil-on-a-high-mile-motor/51511/4 "2008-07-15T08:53:29Z")
:lol: ---
**Author:** ![Harvey](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/harvey/32/5069_2.png) [@Harvey](https://forums.speedlife.net/u/Harvey)\ **Post date:** [July 15, 2008, 8:54am UTC](https://forums.speedlife.net/t/synthetic-oil-on-a-high-mile-motor/51511/5 "2008-07-15T08:54:09Z")
Mobil 1 will cause seal leaks, unless you get the European blend, which I believe only comes in 0w30. ---
**Author:** ![CrazyLT1](https://avatars.discourse-cdn.com/v4/letter/c/bc79bd/32.png) [@CrazyLT1](https://forums.speedlife.net/u/CrazyLT1)\ **Post date:** [July 15, 2008, 8:54am UTC](https://forums.speedlife.net/t/synthetic-oil-on-a-high-mile-motor/51511/6 "2008-07-15T08:54:13Z")
Kind of a tough situation. Lighter weight oils or synthetic oils will get up to the top of the engine quicker and therefore it will take less time for the oil to arrive and lubricate things. BUT, you could also possibly find new oil leaks by switching to a synthetic oil, and obviously a heavier weight oil will be better for a high mileage tired motor. ---
**Author:** ![jt76](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/jt76/32/5100_2.png) [@jt76](https://forums.speedlife.net/u/jt76)\ **Post date:** [July 15, 2008, 9:03am UTC](https://forums.speedlife.net/t/synthetic-oil-on-a-high-mile-motor/51511/7 "2008-07-15T09:03:08Z")
> [@turbo ls1 ss](#): > > nitrous > > put it out of its misery. > > **have your gf buy it** shes not even that… thats what makes it so awesome my friend… stick with me and i will teach you the shady ways 🤣 ---
**Author:** ![Studderin](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/studderin/32/7197_2.png) [@Studderin](https://forums.speedlife.net/u/Studderin)\ **Post date:** [July 15, 2008, 8:40pm UTC](https://forums.speedlife.net/t/synthetic-oil-on-a-high-mile-motor/51511/8 "2008-07-15T20:40:49Z")
> [@eesti](#): > > Mobil 1 will cause seal leaks, unless you get the European blend, which I believe only comes in 0w30. how do you tell its european blend ---
**Author:** ![Harvey](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/harvey/32/5069_2.png) [@Harvey](https://forums.speedlife.net/u/Harvey)\ **Post date:** [July 16, 2008, 4:36am UTC](https://forums.speedlife.net/t/synthetic-oil-on-a-high-mile-motor/51511/9 "2008-07-16T04:36:12Z")
Mobil puts it on the bottle. It has more zinc and phosphorous if I remember correctly, increasing shear. They had to call it Euro blend to get around US emission standards. ---
**Author:** ![IanK](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/iank/32/5016_2.png) [@IanK](https://forums.speedlife.net/u/IanK)\ **Post date:** [July 16, 2008, 8:22am UTC](https://forums.speedlife.net/t/synthetic-oil-on-a-high-mile-motor/51511/10 "2008-07-16T08:22:48Z")
My DD has 140K, I run 10W-30 Synthetic Max life and a quart of lucas oil, it honestly runs as smooth as a brand new car, I’d go for it. ---
**Author:** ![ubengineering](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/ubengineering/32/5171_2.png) [@ubengineering](https://forums.speedlife.net/u/ubengineering)\ **Post date:** [July 17, 2008, 6:18pm UTC](https://forums.speedlife.net/t/synthetic-oil-on-a-high-mile-motor/51511/11 "2008-07-17T18:18:24Z")
20w50 and lucas