off to top up my oil today and i remember at my last service they used semi synthetic. but is 10w40 ok in my car. i run 30 miles a day to work in total at aprox cruising of 50mph. 2.0L vectra 1997. ecotec engine 16V petrol
2007-08-29 06:14:07 · 11 answers · asked by andy m 1 in Cars & Transportation ➔ Maintenance & Repairs
You might want to think about a lower viscosity, most of them recommend the 5W for aluminum block engines of the synthetic.
2007-08-29 06:19:19 · answer #1 · answered by Steve C 7 · 1⤊ 0⤋
The thicker 10/40 oil is possibly better for your car which , being 8 years old is "probably more worn in". The oil companies along with manufacturers have (arguably) created a mystique with oil and oil grades. That said, the long life service intervals afforded by modern engines would demand the best and correct grade of oil. The more humble older engines will get by on good quality lubricants with more frequent changes. The old saying about the "Cheapest mechanic being a gallon of oil" still applies !
2016-04-02 05:29:59 · answer #2 · answered by Anonymous · 0⤊ 0⤋
Semi synthetic oil is a mixture of synthetic and a quality fossil fuel oil,so the oil is compatible with all oils.You can mix fossil fuel oil with synthetic oil with no effect on lubricity,however you do defeat the purpose of using synthetic oil,for it's superior lubrication qualities,and heat dissipation,but I am transgressing,yes you can mix them,sorry for the babble.
2007-08-29 06:25:38 · answer #3 · answered by the bear facts 5 · 0⤊ 0⤋
Semi-Syn is fine but check your owners manual (or engine compartment maybe) for recommended oil grade. Used to be 10-40 was what all (most) cars used but not any more.
2007-08-29 06:22:31 · answer #4 · answered by tamarack58 5 · 0⤊ 0⤋
Should be OK but should double check the manual to make sure the best oil for your car so its runs in optimum condition. According to Castrol this is the correct oil.
2007-08-29 06:24:37 · answer #5 · answered by davidleeis14 2 · 0⤊ 0⤋
You might want to drop down to 5W. You should also make sure you don't void your warranty by using a synthetic. If your warranty is ok - then you will be fine.
2007-08-29 06:25:42 · answer #6 · answered by Eric T 2 · 0⤊ 0⤋
Yes 10w40 should be fine
2007-08-29 06:18:47 · answer #7 · answered by Big kid 5 · 0⤊ 0⤋
if you go to Halfords in the oil section they have a book that tells you what oil goes in what car I would say 10w 40 is to thick
2007-08-29 08:22:04 · answer #8 · answered by GARY I 3 · 0⤊ 1⤋
Yes you will be just fine.
2007-08-29 06:22:54 · answer #9 · answered by cliff1224 4 · 0⤊ 0⤋
yes its fine....
2007-08-29 06:17:16 · answer #10 · answered by Anonymous · 0⤊ 0⤋